HapticKey - Trigger haptic feedback when tapping Touch Bar
RetroArch - RetroArch is a frontend for emulators, game engines and media players.
Touch Bar Simulator - The macOS Touch Bar Simulator as a standalone app
Playnite - Source code generated using layoutit.com
TouchBar for your old MacBook - Use Touch Bar on an iPad through USB connection
Batocera.linux - Batocera.linux is an open-source and completely free retro-gaming distribution that can be copied to a USB stick or an SD card with the aim of turning any computer/nano computer into a gaming console during a game or permanently.