
The libretro build, bundled with RetroArch so it installs and plays in one click.
Arcade · 1999 · ~50 MB · Free to play
That One Thing
Trapping three of your friends in a dead-end corridor with a remote-detonated bomb chain, then accidentally grabbing a skull curse that reverses your own controls.
Mr. Boom's standalone Windows download is gone — the author's site no longer serves it, and upstream publishes source only. What is still maintained is the libretro core, which needs RetroArch to run it.
This edition installs RetroArch from its official buildbot, drops the Mr. Boom core beside it, and launches straight into the game. Nothing is redistributed by PlayBound: both downloads come from the projects' own servers.
The core carries its own game data, so there is no ROM to supply. Up to eight players locally.
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Minimum Requirements
1.0 GHz CPU · 512 MB RAM · DirectX 9 / OpenGL GPU · 100 MB storage
Recommended Requirements
Dual-Core CPU · 2 GB RAM · 2-8 gamepads for couch multiplayer
Vouched for by established community members, not yet PlayBound tested.

Portable DRM-free open-source build for PC with zero install footprint.
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