1K Hi-Res Games Pack
(WRX)
(released Aug 2012 by Dr Beep)
 This is a
pack of 10 games, all written in just 1024 bytes, and showing in
beautiful hi-resolution on the Sinclair ZX81.
Originally
intended to be a commercial offering, the games show some problems
on some versions of the ZX81, so the author asks that a donation be
made to charity.
The games included in the pack are:
1)
Wiwo Dido, the case of Mazeddy's castle
2) Blocky
3) 3D Maze,
return to Mazeddy's castle
4) Ghost hunt
5) 3D Random maze
6) Othello
7) 10 Pin Bowling
8) Spy vs Spy
9) Memory
10)
Police patrol
Videos of the games can be seen on
Youtube
Download
the 1K Hi-Resolution Game Pack
|
Airport by Renato Degiovani
(alternative Hi-Res version released Nov 2000 by kmurta) (UDG)
This is an arcade game originally published in issue 22 of the Micro Sistemas magazine.
This version has been adapted to work with a redefined characters
available through hi-resolution display interfaces which are
mapped to 3000h in RAM.
The aim
of the game is to land your plane safely - although before you do so,
you need to bomb the enemy helicopters and tanks which are blocking the
airfield.
Visit kmurta's webpage for
Sinclair ZX81 Software |
Asteroids by QuickSilva
(alternative Hi-Res version released Sep 2010 by kmurta) (UDG-128)
This is
the classic Asteroids arcade game for the Sinclair ZX81, originally
published by QuickSilva - it could work with the QuickSilva sound
interface and hi-resolution graphics interfaces to provide you with an
enhanced game.
This version has been adapted to work with the ZONX-81 sound interface
and also the more common hi-resolution display interfaces which are
mapped to 3000h in RAM.
The aim
of the game is to destroy the asteroids surrounding your space ship by blasting them into smaller and smaller pieces before they
hit you.
Visit kmurta's webpage for
Sinclair ZX81 Software |
Avalanche by
Revival
Studios
(re-released
August 2012)
An arcade game featuring AY Sound whereby gems are falling down from
the top of the screen. Match the symbol which appears on your
gun, with the symbol on the appropriate gem and blast away!
As you blast the speed increases, unless you can shoot down
combinations of gems!
Has built in ZXpand Joystick support.
Purchase
Avalanche for the ZX81 from Revival Studios |
Brainf*ck Interpreter by Matthias Swatosch
This program allows you to run the
standard Brainf*ck programs. If you have never heard of this odd
interpreter (we apologise for the name), it is a language which has
only 8 commands - + - < > [ ] , .
Not the easiest of programming languages with such a small number of
commands. The ZX81 implementation uses ( ) instead of [ ].
This version of the program is written in assembly language on the ZX81
and uses 16 bit cells. You can use the ? command (dump) to get an
overview of the 22 cells around the pointer. A single-step trace
and dump mode can be entered with ?? and ended with ?.
 The BASIC
program also shows how you can use self-linking machine code structures
on the ZX81 which make it possible to run the machine code program in
the last REM line whilst adding lines in front of it.
Download the Brainf*ck
Interpreter
(For more information about the language - please refer to the
documents at wikipedia, or this video
tutorial).
|
Boulder Logic by Bob Smith (released
January 2011)
This is a fast scrolling game where
you have to make your way through cornish mines in search of the one
special diamond to be used in your lucky girlfriend's engagement ring.
Beware falling boulders as you dig to gather enough diamonds to unlock
the exit on each level (32 levels in total) and beware the various
dangers which lurk in the mines.
Written in 100% machine code - the game plays very smoothly and makes
excellent use of the ZX81's graphics to make this a game comparable to
early ZX81 classics such as 3D Monster Maze and Mazogs.
Download 16K
Version |
Cannon
War
by
Andre
This is an excellent arcade game - you have to move closer to the enemy
cannons to destroy them with your cannon before one of their cannon
balls gets past you.
There are two versions included -
Version 1
uses the keys 5, 6, 7, 8 to
move and 0 to fire, or version 2 using keys 1, A, I, P and 0 (zero).
Download English Version
Download French Version
|
Cartoons by kmurta (released Apr 2005) (WRX)
This
program
shows a demonstration of hi-resolution cartoon characters on screen.
Download Cartoons
Visit kmurta's webpage for
Sinclair ZX81 Software |
Chopper Drop 3000 by Philip Lord
This is an excellent arcade game for the 16K ZX81 - you have to fly
your helicopter on a mission to destroy enemy tanks with your bombs,
before they shoot you down. The bombs takes account of inertia,
so if your helicopter is moving when you fire, the bomb will continue
along the same trajectory or you can of course hover for pinpoint
accuracy.
Beware the unidentified flyer which will drop bombs on your head!
There are two versions included -
Version 1
uses the keys Q, A, O, P to
move and M to fire, or version 2 using keys 5, 6, 7, 8 and 0 (zero).
Download Version 1
Download Version 2
|
Clock by kmurta
 <(released Mar 2004)
This
program
shows the use of ZX81 video routines to display a mulitasking digital
clock in the top right hand corner of the screen.
The time is entered in 24 hours, HHMMSS format. The
demonstration program shows the digital clock in the upper right corner of the
screen whilst a square traverses the screen from one side to another. Stop the program
with BREAK and note that teh clock is still being updated.
Clear the screen with CLS or LIST the BASIC program, the clock is still there and is only
disabled with the commands FAST, LLIST, LPRINT, PAUSE or editing any line of the BASIC program.
Download Clock
Visit kmurta's webpage for
Sinclair ZX81 Software |
The Crystal Frog by Gus
 This is an excellent text only adventure, written for
the Quill Adventure Writer, which has now been ported across from the
Sinclair ZX Spectrum version by Kerian (UK) Limited.
It needs a Sinclair ZX81 (or emulator) equipped with 32K RAM - you need
to enter the commands:
POKE 16389,192
NEW
before issuing LOAD "".
The adventure is set in a magical world and you must
seek out the priceless carved gem of the title. Eerie castles, stalking
murderers and enraged animals will dog your tracks and the atmosphere
is enhanced by effective descriptions and an attention to detail.
Download The Crystal
Frog
|
Dan's Revenge by Steven
McDonald (HRG)
This is
a good game which requires particularly good timing as you have to get
past the monsters to collect the gems in the maze. A former
commercial game, this has been made freeware
Download Dan's Revenge |
Dancing Demon by kmurta
This is
a game originally developed in 1979 for the Tandy TRS-80 Computer.
The Dancing Demon will respond on screen to various music files - you
can create and edit your music from inside the program. You need
a sound generator compatible with ZONX-81 to hear the music.
Download Dancing Demon
Visit kmurta's webpage for
Sinclair ZX81 Software
|
Demo
by Matthias Swatosch (HRG)
This program simply shows off the
Hi-Resolution
graphics possible under the new hi-res driver.
It draws some graphics on the screen and then prints
it. You will see the graphic being drawn on the screen and whilst
the program runs, you can press a hotkey to switch between the graphic
bank(s) and the text screen, or make a printer copy of the graphics as
they are drawn.
The 64K version will then provide an animated view of the graphics - as
per the picture here.
Download 16K Version
Download 64K Version
|
Domin8tr1s
by Bob Smith
This game is a cross between Tetris
and Dominoes, whereby instead of shapes falling down, you have numbers
falling, which you have to match up numbers in order to clear rows from
the grid before it reaches the top.
Written in 100% machine code - the game plays very smoothly and you
have to form a
line of matching numbers - the amount you have to match is given by the
number value (for example, to clear 4s from the screen, you have to
make a line of four 4s!)
Download 16K
Version
|
Down by
Revival
Studios
(re-released
October 2012)
An arcade game featuring AY Sound where
your village is under attack (and burning) - your only means of
escape is by heading underground.
Drop down from platform to
platform, whilst picking up items to collect points.
Has built in ZXpand
Joystick support.
Purchase
Down for the ZX81 from Revival Studios |
Dunric's
Adventure
by
Andre
This is a re-write of a text adventure originally produced for the
Sinclair ZX Spectrum by Paul Panks.
Written to use only 8K of memory, this contains interesting puzzles and
plenty of fight scenes!
Download English Version
Download French Version
|
Ferrengi by HOOY-Program in
co-operation with Andre
This
is a re-write of the classic arcade game, Klingons. Supplied as
either
a full version for the expanded Sinclair ZX81, Timex-Sinclair TS1000
and TS1500 (min 4K RAM) , a 2K version for an unexpanded Timex 1000
(2Kb of RAM) and a 1K cut-down version.
This
time Klingons were flying through space with a ship full of gold-pressed latinum for
the Empire. Sadly (luckily for you) they crashed in an asteroid field and all the gold-pressed
latinum bars are flying among the asteroids now. This is an opportunity for you.
And you're Ferengi so you LOVE
latinum. That's why you have to enter the asteroid field with
your spaceship and collect as many latinum bars as you can, before more
Klingons come here. Ferengi Rules of Acquisition tell you to do that
even though the asteroid field is the most dangerous place for a
spaceship. You must avoid the asteroids - they will make you a dead
Ferengi for sure.
Control
panel of your ship: cursor keys - "5" and "8" (left/right).
Download
English Version
(ZIP file complete with the casette inlay)
Download French Version
1K Version adapted by
Factor6
|
Fig Forth by
kmurta (released Jul 2009) (UDG)
This is
a version of Fig Forth, based on the original Forth compiler for the
Sinclair ZX81, published by Artic Computing.
This version was developed specifically for use on emulators (such as
EightyOne) and needs a hi-resolution display interfaces mapped to 2000h
in RAM, with the compiler being loaded to
2200H.
The project reached an alpha development stage where the compiler provided
better performance than the Artic version of Forth, but development
halted as the author moved on to develop MS-Forth v2.0 and later Toddy
Forth (also on this page).
The version here, although it is an alpha version, is quite functional, but surely full
of bugs and has incomplete definitions.
Download Fig Forth
Visit kmurta's webpage for
Sinclair ZX81 Software |
Galaxians by Artic Computing
 (alternative Hi-Res version released Feb
2003 by kmurta) (UDG)
This is
the classic Galaxians arcade game for the Sinclair ZX81,
originallypublished by Artic Computing.
This version has been adapted to work with hi-resolution display
interfaces which are
mapped to 3000h
in RAM.
The aim
of the game is to shoot down the invading aliens before they destroy
you.
Visit kmurta's webpage for
Sinclair ZX81 Software |
HRPictures by kmurta (released Dec 2003)
This package contains two programs which each output hi-resolution
pictures direct to the Sinclair ZX Printer (although you cannot see
them on the ZX81 screen), or to the ZX81 screen (if you have the WRX
hi-resolution drivers and modified RAM pack).
They are demo programs to show the capabilities of the ZX Printer
(although printing is rather slow).
Download HRPictures
Visit kmurta's webpage for
Sinclair ZX81 Software |
Interceptor by Siggi
This is an excellent arcade game based on the TV series from the 1970s,
UFO.
Here you pilot a SHADO interceptor, on a mission to destroy incoming
UFOs before they reach the earth.
There are two versions included - a
standard version and a second enhanced version which supports UDGs at
8K (screenshot shows the enhanced version). Currently the
enhanced version will only work on the EightyOne ZX81 emulator for the
PC, or, if you are lucky enough, a standard ZX81 with a 16K RAM pack
which gets its address lines from the ROM - unfortunately, this is
different to the changes required for the HRG module referred to above.
Download Standard Version
Download Enhanced UDG Version
|
Invaders by QuickSilva (alternative Hi-Res version released Sep
2010 by kmurta) (UDG-128)
This is
the classic Space Invaders arcade game for the Sinclair ZX81,
originally
published by QuickSilva - it could work with the QuickSilva sound
interface and hi-resolution graphics interfaces to provide you with an
enhanced game.
This version has been adapted to work with the ZONX-81 sound interface
and also the more common hi-resolution display interfaces which are
mapped to 3000h
in RAM.
The aim
of the game is to shoot down the invading aliens before they
reach the earth.
Visit kmurta's webpage for
Sinclair ZX81 Software |
Kong by Paul Farrow - updated May 2011
For those of you who have never
played Kong, this is a platform game, where you have to move up a
series of platforms and ladders to save the beautiful maiden being held
by King Kong.
You are hampered by the barrels which Kong rolls down the screen at you
to try and knock you off the platforms..
This is a port of the version
written for the Sinclair ZX80 and requires 16K of memory
Download
Sinclair
ZX81
Kong (P and P81 version)
Visit Paul
Farrow's
website for latest version. |
Laby by bock
This is
a lbyrinth game where you have to move around collecting the flashing
crystals and avoiding the deadly ghosts.
It has a interesting feature in that every now and then, the
labyrinth is plunged into darkness - there is a lamp which you can
collect to light up your surrounding area.
Laby v2 has now been released, which adds the ability to shoot ghosts
with darts, immobolising them for a short while. It also now has
9 levels.
Not as easy as it looks - written in C. 16K RAM required.
Download Laby v2 |
Landhere by Matthias
Swatosch (HRG)
This is
a simple game which asks you to land a spaceship on top of a building.
It shows how to draw polygons in Hi-res
graphics using the HRG drivers.
Download Landhere |
Lightsout by Andy Rea
This is
a puzzle game, where you are presented with a grid of lights. To
complete the game, you have to turn all of the lights off - the only
problem is that switching some lights off, turns others on, so you have
to work out the best way to do this in the time allotted.
Download
Lightsout |
MathZX by Andre
This
is an educational program based around mathematics, which tests your skills at addition and multiplications.
This
comes in English and French language versions.
Download English Version
Download French Version
|
Mayhem by
Revival
Studios
(re-released
August 2012)
An arcade game featuring AY Sound whereby you play the role of Clive
Junior, Inventor Extraordinaire.
His latest invention has
exploded leaving parts flying across the room - you have to pick up
the parts whilst avoiding the debris.
Has built in ZXpand
Joystick support.
Purchase
Mayhem for the ZX81 from Revival Studios |
MazezaM by Malcohol
This is
a simple game which is a good achievement, running on the basic 1K
Sinclair ZX81.
The game involves you manouevering through a series of mazes, each of
which has internal walls which can be moved left and right to enable
you to get past.
Not as easy as it looks and very addictive.
Download MazezaM |
Micro
Sistemas (MS) Forth c2.0 by kmurta (released Jan 2010) (UDG)
This is a version of Forth which was based on a minimalist version of
Forth first published in the Micro Sistemas magazine issue no. 37.
This was a small and agile forth, but with a strange vocabulary with words such as TOKEN, COMPILER, MODE,
LBP,0SET,1SET,OUTIN,FTOKEN,QUESTION, amongst others, not commonly found in standard forths.
After disassembling the original compiler, the author discovered the function of each of these words, for
example, he found that OUTIN was equivalent to the word INTERPRET, LBP has the same function as > IN, TOKEN was equivalent
to RD.
MS Forth v2.0 was then born - based on this
original code, but with the more common words used, together with
syntax from Fig Forth. Where using the more common words would increase the code size (such as
changing LBP to >IN), they were left as LBP, in order to
ensure the code was kept as small as possible.
The author also adopted the ASCII code for characters and assumed the availability of a character board at 3000h like in the
TK85 to generate the ASCII character set.
The keyboard routines have all been rewritten and the keyboard was remapped.
A nice feature that was copied to MS Forth v2.0 was the ability to import forth programs directly from text files, when using the
EightyOne emulator. Simply load the forth text file into EO RAM through the menu File->Load Memory Block at the
address 32768. Then just compile it with 32768 LOAD.
Although it reached a development stage much more advanced than the ZX81 Fig Forth, development of MS Forth V2.0 was also halted
in order to bring a new forth more advanced and powerful, ZX81 Toody Forth, which appears below.
Download MS Forth v2.0
Visit kmurta's webpage for
Sinclair ZX81 Software |
Minefield by Andy Rea
This is a puzzle game / arcade game, where you have to make your way across a
mine field.
As you progress, you leave a trail of dots behind to show where it is
safe to walk. A mine detector warns you how many mines are
adjacent to where you are stood at all times.
There are several levels of difficulty to tax your mind.
Download
Minefield |
Miner Man by Bob Smith (2011)
This is similar to Boulder Logic in some ways, and has been based on an XBOX 360 game where you have to collect the
gems from 38 different levels, whilst avoiding the boulders and traps. Each boulder has a set path it will move along when the soil is removed
from around the boulder, so it may trap you, or cut off your path!
Written in 100% machine code - the game plays very smoothly and makes
excellent use of the ZX81's graphics to make this a game comparable to
early ZX81 classics such as 3D Monster Maze and Mazogs.
The program will also automatically detect the presence of a joystick connected to the ZXpand (or ZXpand-AY interface)
so that you can play with a joystick easily.
Download 16K Version |
Music Interpreter by kmurta (released Apr 2005)
This
program adds a musical macro language to the Sinclair ZX81, which is
similar to that used in the 'PLAY' command on MSX and TRS Color
computers.
It implements all subcommands required to perform music in a wide range of scales, with
the sound being generated by the VSYNC signal, without the need for additional hardware.
The package includes two demo programs, including one which plays some
Beatles songs.
Download Music Interpreter
Visit kmurta's webpage for
Sinclair ZX81 Software |
Nanako in Classic Japanese Monster Castle
'81 by Mojon Twins (released May 2011)
This is a well respected classic
arcade game, which has been released for the Sinclair ZX Spectrum,
Amstrad CPC and the Commodore 64. This has now been ported to the
Sinclair ZX81 by the Mojon Twins.
In the game, you have to find your way out of the Monster Castle, by
picking up boxes and moving them as platforms from which you can jump
to get over monsters, or past obstacles, or higher up into the castle.
This requires 16K of memory and the
files include the source code, which has been written in C using their
own library for z88dk which allows games to be written in text
mode. The library itself is coded in a mixture of C and
assembly and currently supports 4x4 character sprites to be printed or
grabbed from a 32x48 characters (two screens) buffer which can be
easily scrolled, and comes complete with a keyboard reading routine
which detects OPQA and M or SPACE (plus S, for this game)
Also supports a ZXpand Joystick
Download
Nanako
in
Classic Japanese Monster Castle '81
Visit the Mojon
Twins
website for more details.
|
Pacman by Paul Farrow - updated May 2011
For those of you who have never
played Pacman, this is a series of mazes where you have to move your
pacman and eat all of the food on the screen (represented by dots).
You are chased by four ghosts, but if you eat one of the four items of
super food (the O towards the four corners of the screen, then you can
munch the ghosts!).
This is a port of the version written for the Sinclair ZX80
and requires 16K of memory
Download
Sinclair
ZX81
Pacman (P and P81 version)
Visit Paul
Farrow's
website for latest version. |
Panic HR by unknown (updated Hi-Res version released Aug 2010
by kmurta) (UDG-128)
Originally
published in MicroHobby magazine issue 23(September 1985).
This is an
implementation of the classic game, Panic, where you have to dig holes
for the mutant workers in the underground mine to fall into, and then
hit them over and over until they fall and die. Of course, they
can escape from the holes you dig, if you do not get there quickly
enough.
Originally published in
a magazine in September 1985, this version has been adapted to use
character re-definition to show improved characters.
Visit kmurta's webpage for
Sinclair ZX81 Software |
Pink Panther by kmurta (released Jun 2010)
This is an experimental program which converts midi files to a format
suitable for playing on a sound device complete with an AY-PSG 3-891*
chip (such as the ZONX-81 interface).
The Pink Panther is just the theme shown on screen.
Download Pink Panther
Visit kmurta's webpage for
Sinclair ZX81 Software |
PipePanic by Thunor
This is
an addictive program in 8K - you have to place the various pieces of
pipe into the grid to connect the inflow with the outflow before the
timer runs out and the sewerage is sent through the pipes.
Can you close off all of the leaking joints, or will you be up to your
knees in raw sewerage?
Download PipePanic
(includes source code)
|
Pipes by Matthias Swatosch
(HRG)
This is a simple program which uses polygons drawn in Hi-res graphics using the HRG drivers, to produce a series of 3D pipes, similar to the Windows
screen saver.
Download Pipes |
Poker HR by unknown (updated Hi-Res version released Sep 2010
by kmurta) (UDG)
Originally published in Micro Sistemas Magazine issue 54 (March 1986).
This is a
version of Poker to play on the Sinclair ZX81. Originally
published in a magazine in March 1986, this version has been adapted to
use character re-definition to show improved characters.
Visit kmurta's webpage for
Sinclair ZX81 Software |
QFrogger by thewiz
Shows just what can be achieved in only 1K RAM.
This is a take on the classic Frogger arcade game featuring cars,
caravans and crocodiles.
Move your frog, represented by an X, passed a busy road and then a
river, filled with turtles and logs,to get home. After getting five
home, you are moved to another part of the river, which is slightly
faster.
Keys are Q - T for up. A - G for down, O for right and P for right.
Written to see what could be done in 1K and limiting the display to a
quarter of the normal screen size (thats were the Q comes from).
Developed using WLA-DX.
Download QFrogger |
The Quill Adventure Writer
by Gus
Surprisingly, someone has managed to port the Quill Adventure writer
over to the 16K Sinclair ZX81.
The Quill is a well known program for writing text only adventures and
a wealth of adventures have been written for use with this
interpreter. At the moment, this is just the interpreter side -
it is anticipated that the Quill editor will be released in the near
future. The interpreter and database are merged together into one
.p file for loading - there is a magic word "LOLO" to indicate where
the database starts within the .p file, and another word "LULU" to mark
the end of the database.
The end of each message is marked by 0xFF.
Download The Quill
|
Reverse by Andre
This
is a fairly easy game to understand - you are presented with a series of digits which you must re-order by selecting
2 or more digits from the left hand side of the grid. The game comes with both 1K and 16K versions.
This
comes in English and French language versions.
Download English Version
Download French Version
|
Rock Crush by Steven
McDonald (HRG)
This is
a good game which is a clone of Boulderdash in hi-res graphics for the
humble Sinclair ZX81. Collect gems by mining through the earth to
reach them, but beware that the boulders will fall on you if you are
not quick enough to get out of their way. A former commercial
game, this has been made freeware
Download Rock Crush |
Scramble by QuickSilva (alternative Hi-Res version released Sep
2010 by kmurta) (UDG-128)
This is
the classic Scramble arcade game for the Sinclair ZX81, originally
published by QuickSilva - it could work with the QuickSilva sound
interface and hi-resolution graphics interfaces to provide you with an
enhanced game.
This version has been adapted to work with the ZONX-81 sound interface
and also the more common hi-resolution display interfaces which are
mapped to 3000h
in RAM.
The aim
of the game is to shoot down the invading aliens who are
attempting to abduct humans from the planet below.
Visit kmurta's webpage for
Sinclair ZX81 Software |
Sinus by Matthias Swatosch
(HRG)
This is
a simple demo which shows how to produce a
sin curve in Hi-res
graphics using the HRG drivers.
Download Sinus
|
Toddy Forth by kmurta (released Jan 2011) (UDG)
This is an implementation of Forth for the Sinclair ZX81 microcomputer, which was developed from the code for MS Forth (see above),
adopting many of the concepts of Camel Forth by Bradford J. Rodriguez.
This may be the only version of Forth for the ZX81 which uses Direct Threaded Code (DTC), which makes it considerably faster
than other existing implementations.
If you are developing on an emulator, then you can use any text editor
you like on your PC and then compile it using the emulator - for
example, on EightyOne, load the forth text file into EO RAM through the menu File->Load Memory Block at the address 32768.
Then just copile it with 32768 LOAD.
The basic core occupies a little over 4K and includes the most common words and can be easily extended as required.
Includes several sample programs and a library file with dozens of definitions of words not included in the basic core.
Two versions are included in the attached file - tforth10-std.p is for
the original Sinclair ZX81, tforth10.p was developed for use
with the TK-85 and has integral ZONX-81 support and requires a hi-resolution display interface which is
mapped to 300h in RAM.
Also included in the Toddy Forth package are various example programs
and games written in forth:
3DMAZE (UDG-128) - requires zonx81 compatible sound board
Acemines (UDG) - requires zonx81 compatible sound board
Breakout (UDG) - requires zonx81 compatible sound board
Breakout-std - requires zonx81 compatible sound board
Calendar
Divn
Dump
Factorial
Hanoi
Mancala
Millipede (UDG) - requires zonx81 compatible sound board
Plot-test
Rotsom - creates sound on a standard Sinclair ZX81 using sync pulses,
similar to Music Interpreter.
Sokoban (UDG) - requires zonx81 compatible sound board
Sudoku (UDG) - requires zonx81 compatible sound board
Download Toddy Forth Package
Visit kmurta's webpage for
Sinclair ZX81 Software
|
Treasure Hunter ("Em
Busca dos Tesouros") by Tadeu Curinga da Silva
This is
a Brazilian arcade game which was originally released in 1986 and
places you in the role of a Treasure Hunter who must overcome various
obstacles and enemies to find the treasure.
There are 313 different screens and 15 different enemies and the author
gave his permission in 2006 to this game being made freely available
over the internet.
More details about the background of the game and the instructions (in
Portuguese) appear at Muriloq's
website
Supports the ZXpand Joystick
Download Treasure Hunter |
Tron Trails by Andy Rea
This is
a game based on the cult film Tron, whereby you have to ride around on
your Light Cycle leaving a trail of light behind you.
The first player that crashes into the light trail is killed. Can
you trap the computer before it traps you?
Download
Tron
Trails |
UHR by Matthias Swatosch
(HRG)
This is
a program which draws an analogue clock on the screen in Hi-res
graphics using the HRG drivers. It automatically adjusts for a UK
Sinclair ZX81 running at 50Hz, or an American Timex-Sinclair 1000
running at 60Hz.
When running the program on an emulator, you will need to adjust the
variable fps (frames per second) to match your picture frequency
manually.
Download
Uhr
|
UPPERlowerfont by Matthias
Swatosch
(HRG)
This is
a program which utilises the UDG (user defined graphics) capability in
the HRG package (v2.7 minimum) to create a character set which has both
upper and lower case characters, as well as some extra characters.
Download
UPPERlowerfont |
UWOL, Quest for Money '81 by Mojon Twins (released March 2012)
This is another excellent game by
the Mojon Twins.
In the game, you have to explore Storm Palace, collecting as many gold coins as you can muster (a minimum of 150),
whilst working your way back to the surface from the top of a pyramid.
You are hindered by 3 enemies who can summon Fanty which will chase you relentlessly all accross the screen.
If you touch a baddie you’ll lose your clothes. Look for a T Shirt nearby, otherwise you’ll die on the next touch.
This requires 16K of memory.
Use O,P to move left or right, Q or to jump and A to move down to the next room when you are standing on top of one of the arrows at the bottom of the room.
Also supports a ZXpand Joystick
Download
UWOL, Quest for Money '81
Visit the Mojon
Twins
website for more details.
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Virus by Bob Smith
This is a fast scrolling game where
you act as a security guard at a laboratory where the viruses have
gotten out of control. Your task is to move around the 8
different levels, collecting ammo and destroying all of the mutated
viruses on each level before moving to the next.
Written in 100% machine code - the game plays very smoothly and makes
excellent use of the ZX81's graphics to make this a game comparable to
early ZX81 classics such as 3D Monster Maze and Mazogs.
Download 16K Version |
ZX4PAINT by Dominique Contant (HRG)
This is a is a fully featured drawing package for the Sinclair ZX81,
written in Forth and is Dominique's first ZX81 Forth program.
Probably the best drawing package we have seen (and sadly missing in
the early 1980s).
FEATURES:
-Draw Line, Circle, Ellipse and Rectangle with rubber band drawing.
-Cut / Copy and Paste part of the Screen
-Area FILL of an enclosed shape..
-Magnify part of the screen for more detailed work.
-UNDO previous operations in case you make an error.
Commands :
- Colour key ‘0’ ( white) – Key ‘1’ (Black) – Key ‘T’ (Transparent)
- Shift 5 6 7 8 for Up Left
Right Down.
- Lines : Press ‘L’ – Up Left
Right Down – Press ‘L’
(again) for end of line.
- Rectangle : Press ‘R’ – Up
Left Right Down – Key ‘R’
(again) to complete.
- Circle : Press ‘C’ – Up
Left Right Down – Press ‘C’
(again) to complete.
- Ellipse : Press ‘E’ – Up
Left Right Down – Press ‘E’
(again) to complete.
- Fill : Move the cursor into a closed shape - press F
- Paste : Press ‘P’ – Up Left
Right Down - (Copy) Press ‘Shift C’
- Move the shape - Press ‘Shift V’ or (Cut) Press ‘Shift X’ - Move
the shape - Press ‘Shift V’
- Magnifying Glass : Press ‘G’
- Press ‘G’ again to return
to normal
- CLS : Press ‘K’
- Undo : Undo all the above command – Press
‘U’
- Quit – Press ‘Q’. (return
to the PROMPT of FORTH )
- In order to launch it again : write: ZX4PAINT<NewLine>
Download ZX4PAINT |
ZXAKURO by Andre
This is a is a cross-puzzle game using digits instead of words. There
is only one possible answer for each grid. Digits 1 to 9 can be used
only once in each continuous row or column. This fantastic brain game
has large grids and digits on a neat and clear screen. The most
noticeable feature is the FAULT INDICATOR which is unique to the
ZX81-TS1000 version. When ending a game, the cursor pinpoints the
faulty square.
GAME FEATURES:
-Instructions accessible at any time during the game.
-Any grids are accessible by code. (This allows you to re-start where
you had previously stopped).
-Large and well defined play grid and digits.
-Colorful and clear screen.
-25 grids of different shapes.-Fault indicator when ending a game. (The
cursor will position itself in the faulty square).
Download English Version
Download French Version
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