New ZX81 Games

[dr beep]

Name of Software: HRLBS
Author: Johan "Dr Beep" Koelman
Release Date: 11/03/2024
Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K lowres
Commercial / Public Domain / Free ware / Other - please specify? Freeware

Description:

HRLBS.png (9.81 KiB) Viewed 2893 times

Downloadlink:

HRLBS.p

(623 Bytes) Downloaded 52 times

Source:

HRLBS.asm

(6.8 KiB) Downloaded 38 times

Video
https://www.youtube.com/watch?v=qpGr1VuyptU

Manual:
HRLBS stands for HighRetrogameLordBombsSquad

This game is coded for Highretrogamelord and the name is given to it.

You ("R") play a member of a bombsquad and you need to dismantle bombs
before they explode. The size of the exploasion is indicated right
from the name of the game.

The points you can score is remaining time x size of explosion.

The size of the explosion has a diameter from 3 to 9.

You start with 3 lives.
You lose a live when you are caught in an explosion or each
time 10 civilians (".") have died
in the explosions.

Controls:
Q up
A down
O left
P right

NewLine to start a game

This game is an arcade version of "MI:Bombsquad" where you only had to find the bomb

[sboisvert]

Looks fun... and addicting!

I would suggest another dimension to the game:

The "civilians", seeing you're a bombsquad member, are panicked at your sight, and figure there must be a bomb around you, and as such 'run away' from you as you go about searching for the bomb; this presents an extra risk - when you're further away from the bomb, they may end up inadvertently running towards it.

This also offers a dilemma: when you know you cannot reach the bomb in time, do you try to get more of the civilians to get away from it by heading towards the bomb, thereby increasing your chances of being caught in the explosion, or do you let potentially even more civilians get caught by the explosion by running away from it yourself?

[dr beep]

Name of Software: Solitaire
Author: Johan "Dr Beep" Koelman
Release Date: 23/03/2024
Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K lowres with CHROMA COLOUR AND GRAPHICS possible
Commercial / Public Domain / Free ware / Other - please specify? Freeware

Description:
The classic cardgame in 1K and fully monkeyproof version in the 1K+ version

The screen with chromacolours and graphics.

Downloadlink:

solitaire.zip

(19.36 KiB) Downloaded 53 times

Video
https://www.youtube.com/watch?v=V_nOiW41m0U

[Moggy]

I'm a non games player except for things like this and to think your 1k Yahtzee was good this is bloody excellent!

[dr beep]

Name of Software: BUGGERCODE
Author: Johan "Dr Beep" Koelman
Release Date: 30/03/2024
Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K lowres
Commercial / Public Domain / Free ware / Other - please specify? Freeware

Description:
A 1K version of MICROMOUSE GOES DEBUGGING

buggercode.png (9.96 KiB) Viewed 2135 times

Downloadlink:

bugcode.p

(948 Bytes) Downloaded 29 times

bugcode2.p

(949 Bytes) Downloaded 15 times

Source:

bugcode.asm

(11.55 KiB) Downloaded 10 times

bugcode2.asm

(11.6 KiB) Downloaded 10 times

EDIT : SMALL CHANGE FOR MORE RANDOMNESS IN BUGMOVES AND PROG2 FIX

EDIT2 : CURRENT VERSION NEEDS 2K, STACK CORRUPTS BUGGERDATA, NEW VERSION FITS 1K

Manual:
BUGGERCODE
----------

In BUGGERCODE bugs are walking around and taking parts of your code.
You need to repair the code before the bugs take parts out of it again.

After starting the game with NewLine you see a small program.
The bug(s) immediately take out some code.
The code can be taken from the bugs by meeting a bug.
You then take over the code and you need to place it on the right place.

Make sure your code is complete before the time runs out.
After 3 programs the first program comes back but with an extra bug running
around. A maximum of 4 bugs will run in the game.

Controls:
Q up
A down
O left
P right
NewLine new game

[dr beep]

Name of Software: KILOPEDE
Author: Johan "Dr Beep" Koelman
Release Date: 02/04/2024
Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K lowres
Commercial / Public Domain / Free ware / Other - please specify? Freeware

Description:
A 1K version of CENTIPEDE

EDIT: BUGFIX FOR SHOOTING
EDIT2: BUGFIX FOR AUTOSHOOTING AFTER REDEFINED KEYS

Downloadlink:

kilopede.p

(716 Bytes) Downloaded 23 times

Source:

kilopede.asm

(8.03 KiB) Downloaded 19 times

Manual:

KILOPEDE
--------
KILOPEDE is my 1K version of "Centipede".

After loading you define the keys to play.
With NEWLINE you always activate a new game.
After starting 30 blocks are placed in the top of the screen.

In the first level a 15 blocks sized centipede starts walking.
You must shoot the centipede to go to the next level.

When you shoot a centipede it will become a block too.
You can shoot blocks to make room for the centipede.

When a part of the centipede can reach the bottom of the
screen it will return double on the top of the screen.

After shooting all centipedes you progress to a next level
with 5 more centipedeparts to shoot.

Scoring:
A centipedepart will give 10 points, a block is 1 point.
A block starts as a "*" and is reduced to "+" and "-" before disappearing.

Controls:
user defined
NewLine new game

[Crayon21]

We were considering creating this as a forum which would contain news of the latest releases for the ZX80 and ZX81 - so that it would be easier for people to find new software, rather than having to search through every thread in this topic, some threads go for several pages to discuss the development of a game, with the link to the actual game or source code hidden in the middle of the thread.

If authors do not want to advertise their software in this thread, then that is perfectly acceptable - we don't intend doing anything with the thread, it is just an idea to help people coming back to the ZX81 after 30 years or so, or new users looking for information on the latest releases

If you want to details your software in the thread, please use the format:

Name of Software: Tetris Hell
Author: Crayon21
Release Date: 4/3/2024
Requirements: 2k RAM
Description: tiny text adventure. your only directions are left and right. Avoid the pieces for as long as you can (not long)
Screenshots: none
Download link (if available for download): https://www.sinclairzxworld.com/viewtop ... f=4&t=5459
Commercial / Public Domain / Freeware / Other - please specify? in progress. the released version is for testing and feedback
Link to Discussion thread: N/A

[dasteph]

Name of Software: Minoss Knossoss
Author: David Stephenson / aka zx81keyboardadventure
Release Date: 8/4/2024
Requirements: 16k RAM
Description: Action Puzzle Game, the sequel to Tut-Tut. Archaeology adventures continue in Crete at the Palace of Knossos.
Download link on Blog: https://www.zx81keyboardadventure.com/2 ... ssoss.html

Controls
Keys: ‘O’ left, ‘P’ right, ‘Q’ up, ‘A’ down, 'F' to pause and ‘R’ to reset the level (at a cost).
Joystick / Gamepad: A Kempston standard Joystick addaptor is supported.
Sound
AY Sound is supported via ZON-X sound cards and compatibles such as the ZXPand+

Full descriptio[n and details on the blog.

Screenshots:

Freeware / Commercial (donations appreciated)

[Moggy]

I might have a bash at UDGs for this like I did for Tut-Tut. Any chance of a list of what letters represent which monsters, amulets treasure etc?

[dasteph]

That would be most excellent Moggy

All the Game Elements are as below.

//State
TL_RESPAWN = 136,
TL_FROZEN = 139,

//Elements & Status Bar
TL_SAND_FULL = 147,
TL_SAND_USED = 8,

// Level Tiles
TL_PATH = 0,
TL_WAL1 = 128,
TL_WAL2 = 177,
TL_WAL3 = 8, // Sand
TL_DOR1 = 157,
TL_DOR2 = 158,
TL_DOR3 = 159,
TL_DOR4 = 160,
TL_KEY1 = 29,
TL_KEY2 = 30,
TL_KEY3 = 31,
TL_KEY4 = 32,
TL_GEMS = 23,
TL_AMUL = 12,
TL_BRAC = 13,
TL_TIME = 15

// Snake
56,63, //Up
56,63, //Right
56,63, //Down
56,63, //Left
184 //Caught/Stuck

// Harpie
17,18, //Up
17,18, //Right
16,19, //Down
16,19, //Left
147 //Caught/Stuck

// Minotaur
129,130, //Up
7,130, //Right
7,132, //Down
132,129, //Left
128

// Player
6,134, //Up
6,134, //Right
6,134, //Down
6,134, //Left
139 //Caught/Stuck