BurgerSpace is a game in which you are a chef and you must walk over hamburger ingredients (buns, meat, and lettuce) to make them fall from floor to floor, until they end up in the plates at the bottom of the screen. It requires X11 in a 16-bit color mode.

License: free

Additional System Requirements: gengameeng >= 4.0 (available from the site)
SDL >= 1.2.0