Update: Modified to accomodate to the latest Mac OSX 10.9: 1. change deprecated api CGTableCount, CGMouseDelta to work with 10.9 SDK 2. change project file linking to new libraries using latest LLVM 3.(optional) set window-screen mode and no expansion pack as default I only got the assets of Doom3 original version, so I change it to no expansion pack as default. The full-screen mode is still broken, so window-mode as default makes more sense. If you run to the console but encounter some Unknown command '-NSDocumentRevisionsDebugMode' errors, go to Product->Scheme->Edit Scheme, select Run doom3.app, unselect "Document versions: Allow debugging when using document Versions Browser" Happy hacking! squarel =================================================================== This is a fork of fabiensanglard's Doom 3 for Mac OS X ...fork :-P It is modified to build properly under the latest Xcode and Mac OS X 10.7 SDK. Currently there are some bugs (UI transition has been disabled because of a linking issue with the templates - shouldn't be hard to fix, i just need some time - and fullscreen modes are not support - again not hard, but...), but the game is fully playable and performs fine under a late 2009 iMac with 9400M in 1024x768 with Ultra quality mode (it just takes a bit to load the textures, so High or Medium quality should be better to avoid pauses). Kostas "Bad Sector" Michalopoulos