The following games are tagged with gravity
Ballon
Colour Genie
Unknown
Bug Eyes
Acorn Electron
Icon
Bug Eyes II
BBC B/B+/Master 128
Audiogenic
Bug Eyes II
Acorn Electron
Alternative
E-Motion
Spectrum 48K/128K
U. S. Gold
Join
Spectrum 48K
RetroSouls
Jubbles
Spectrum 48K/128K
Jonathan Cauldwell
Knight Lore
Spectrum 48K
Ultimate
Paranoid
BBC/Electron
Cervin Games
Plan B
BBC/Electron
Bug Byte
Rocket Smash Ex
Commodore 64/128
Psytronik
Snake Escape
Spectrum 48K/128K/+2
Einar Saukas
Thrust
Acorn Electron
Superior
Thrust II
Amstrad CPC464
Firebird
Toofy In Fan Land
Spectrum 48K/128K
Cronosoft
Vindaloo
BBC/Electron
Tynesoft
1