OpenMM

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Game data ​

OpenMM contains no code or data from Micro Machines. To run it you need your own copy of the DOS game.

The supported release ​

The 3.5" 720 KB floppy of the DOS version (volume label MICROMASTER), whose program MICRO.EXE is 28,955 bytes with CRC-32 8e84eb22 (dated 14 September 1994). Other versions of the program are refused with a message naming the expected one.

The forms it accepts ​

  • A disk image of the floppy (.img or .ima, 737,280 bytes), passed to gasm as the asset disk: gasm-run openmm.wasm --asset disk=disk1.img.
  • The floppy's files in a folder: gasm-run openmm.wasm --asset-dir <folder>. The folder must hold MICRO.EXE and the GAME1 directory.
  • The installed game. The DOS installer copies the same files to C:\MICROM; that folder works the same way.

When copying the files from an image with an archive tool, leave out an empty file called MICROMAS.TER if one appears: it is the disk's label, not part of the game.

Part of ENCORE — Engines of Nostalgia, Clean Open REimplementations. OpenMM is released under the GPL-3.0. Micro Machines is © 1994 Codemasters. OpenMM contains no original code or assets and is not affiliated with Codemasters: it runs the game from your own copy. It runs on gasm. Credits