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The engine (idTech4) is released under GPL. Thus, you can use it for commercial use without paying anything. I guess you can also still buy a non-GPLed version.
by albertzeyer 14y ago
The engine (idTech4) is released under GPL. Thus, you can use it for commercial use without paying anything. I guess you can also still buy a non-GPLed version.
- loboman 14y agoDerivative work that uses the engine must be GPL'd too. That is bad for commercial products that intend to be closed source; I guess those are the commercial products that buy the engine.
- ArtB 14y agoBut that doesn't apply to the maps, sounds, and textures which are really the heart of the game.