- studly
- studly
- substrate
- sudoku
- superquadrics
- supertransball2
- supertux
- supertux2
- supertuxkart
- surfaces
- swirl
- Tali
- tangram
- Taquin
- tatan
- tdsfb
- tecnoballz
- teeworlds
- teeworlds-server
- tegclient
- tegrobot
- tegserver
- tenace
- tenmado
- tennix
- tents
- tessellimage
- Tetravex
- tetrinet-client
- tetrinet-server
- tetrinetx
- tetris
- texmapper
- the_question
- thornbird
- Thrust
- timetunnel
- tint
- tinymux
- titanion
- tmw
- toga2
- tomatoes
- tome
- topblock
- toppler
- torcs
- torus-trooper
- torus-trooper-pure
- tourney-manager
- towers
- trackballs
- trackgen
- Transcend
- trek
- tremulous
- tremulous-server
- triangle
- trigger
- Triplane
- triplea
- tronbit
- trophy
- truchet
- tt++
- tumiki-fighters
- tuxeyes
- tuxfootball
- tuxmath
- tuxpuck
MAN (6)
Games and screensavers