Grime 6502

Commodore 64 - Homebrew - 2019

Grime is an old DOS game I used to have on my PC XT... it was a simple little text game, that was a lot of fun! Grime was written by Mark Elendt... as far as I remember I got it from an old magazine coverdisk... currently Grime is 'abandonware'... no one seems to really remember it, and it's trickyto get working on a modern pc, as it runs too fast!!.. At the start of July 2018, I started a 7 day programming project to recreate 'Grime' as a Z80 based game... I chose it because it's fun and simple, and this gave me a good opportunity... I wasn't just going to remake Grime... I was going to make it work on 11 different systems! I remade grime as 'Grime Z80' which uses one piece of logic code that plays on 11 different Z80 systems... namely: Amstrad CPC, ZX Spectrum,MSX1, MSX2, Enterprise, Sam Coupe, TI-83 calculator, Gameboy, Gameboy Color, Sega Mastersystem and Sega Gamegear! But why stop there... I now had a simple game 'template' which could be extended for something new... why just limit it to the Z80? so in December 2018 I started the project again... this time as Grime 6502

Grime Z80

Enterprise - Homebrew - August 10, 2018

Grime Z80 is a remake of the 1984 text mode game Grime for the IBM PC, now ported to an assortment of 8-bit computers and devices all based on the Zilog Z80 CPU. Like the unsanitary original, it inhabits the general territory of Centipede crossed with Conway's Game of Life: a multi-directional shooter where you battle an expansion of sloppy ooze which behaves and grows like a cellular automaton. The little battleship roams the fixed playfield with its infinite supply of grime-destroying bullets, which can be shot in four directions (the game generously does the shooting for you: in the original game auto-fire was optional -- here it isn't). Mobile enemies travel across the screen and seed new patches of gooey mold; as the muck spreads and mutates, it spawns slimy seepage that actively seeks you out. You get three lives, which you lose if your ship touches one of the moving spores, or gets completely surrounded by goop.