Similar to Godot_(ゲームエンジン)

Ardour (software)

Apache OpenOffice

AbiWord

Inkscape

Audacity (audio editor)

Chromium Embedded Framework

Doxygen

FileZilla

MuseScore

Mozilla Thunderbird

Mozilla Sunbird

UBlock Origin

LuxCoreRender

Adium

Amarok (software)

Apache Xalan

Apache Xerces

APBS (software)

Apertium

Audacious (software)

AutoKey

Blackbox

Blink (browser engine)

Bochs

Botan (programming library)