RenderDoc
Robocode
SASM
SciTE Text Editor
Scratch
sdlBasic
SimulIDE
Sioyek
SLUDGE Floor Maker
SLUDGE Project Manager
SLUDGE Sprite Bank Editor
SLUDGE Translation Editor
SLUDGE Z-Buffer Maker
AT-SPI Browser
Sonic Pi
DB Browser for SQLite
Squeak
stlink
SuperCollider IDE
TortoiseHg
threadscope
TkCon
UEFITool
Virtaal
VisualVM