Global USE flags

Flag Description Packages
debug Enable asserts and debug logging. 5
doc 3
gog Use GOG archive 2
l10n_de 2
l10n_es 2
l10n_fr 2
l10n_it 2
l10n_ru 3
multilib 4
sdl 2
tools Install additional tools 2

Category USE flags

games-engines

Flag Description Packages
opengl 3

Local USE flags

dev-games

netradiant

Flag Description
gui

dev-libs

fuzzylite

Flag Description
static-libs

games-action

rochard

Flag Description
dlc Install DLC

games-arcade

frogatto

Flag Description
extras Install additional modules

games-engines

fifechan

Flag Description
allegro Support for <pkg>media-libs/allegro</pkg>
irrlicht Support for <pkg>dev-games/irrlicht</pkg>

fifengine

Flag Description
fifechan Enable Fifechan GUI subsystem
log Enable logging
python
zip

wyrmgus

Flag Description
X
bzip2

games-fps

dhewm3

Flag Description
dedicated

games-puzzle

snapshot

Flag Description
luajit

games-rpg

arx-libertatis

Flag Description
c++11 Build using the C++11 standard.
crash-reporter Build a <pkg>dev-qt/qtgui</pkg>-based tool that allows to submit crash information to the upstream backtracker.
static Link libraries statically, currently only <pkg>media-libs/glew</pkg>
unity-build Build everything in one big source file, allowing for faster build times and better optimizations at the cost of higher memory usage.

unepic

Flag Description
hb Use HIB archive

games-strategy

curseofwar

Flag Description
ncurses

revenge-of-the-titans

Flag Description
hib Install game from Humble Indie Bundle package

unknown-horizons

Flag Description
test

vcmi

Flag Description
discord Enable Discord integration
editor Enable editor support
erm Enable compilation of ERM scripting module
launcher Enable launcer support
lua
nullkiller-ai Enable NulKIller AI
onnx Enable onnx backend
translations Install translations

media-libs

libsquish

Flag Description
openmp