• GL-117 Action Flight Simulator
  GL-117 is an action flight simulator for Linux/Unix and MSWindows. Enter the Eagle Squadron and succeed in several challanging missions leading though different landscapes.
  with flight opengl simulator by 2 users
• Oolite
  Oolite is a space sim game, inspired by Elite, powered by Objective-C and OpenGL
  with opengl simulator space
• torcs
  TORCS, The Open Racing Car Simulator is a highly portable multi platform car racing simulation. It is used as ordinary car racing game, as AI racing game and as research platform. It runs on Linux (x86, AMD64 and PPC), FreeBSD, MacOSX and Windows. TORCS features more than 50 different cars, more than 20 tracks, and 50 opponents to race against.
  with car opengl racing simulator
• Vega Strike - Home
  Vega Strike is an Open Source 3D Action-Space-Sim that lets you trade, fight, and explore in a vast universe. Vega Strike is built on top of OpenGL and runs on Win/Lin/Mac platforms. Vega Strike (the game) is currently in a playable state, but both game engine and dataset are under continued development.
  with 3d action opengl simulator space by 11 users

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