Similar to ARToolKit

PyQt
PyQt
QBittorrent
QBittorrent
QGIS
QGIS
Qt Creator
Qt Creator
Qtractor
Qtractor
Quassel IRC
Quassel IRC
Quite Universal Circuit Simulator
Quite Universal Circuit Simulator
Radium (ソフトウェア)

RocksDB
RocksDB
Rosegarden
Rosegarden
RPCS3
RPCS3
RTorrent
RTorrent
SAGA GIS
SAGA GIS
Sauerbraten
Cube 2: Sauerbraten
SciTE
SciTE
Scribus
Scribus▲2 trendsScummVM
ScummVM
SerenityOS
SerenityOS
Skia
Skia Graphics EngineSmart Common Input Method
Smart Common Input Method
Stellarium
Stellarium (software)
Stockfish
Stockfish (chess)▲2 trends
Strigi
Strigi
TaskJuggler
TaskJuggler
TortoiseCVS
TortoiseCVS
TortoiseGit
TortoiseGit
TortoiseSVN
TortoiseSVN
UNetbootin
UNetbootin