In 1998-1999 Katana Software team developed a game based on Quake 2. Its story and atmosphere made it nothing less than their own Unreal! Introductory level is impressive and memorable just like that spaceship from Unreal.
Unfortunately, for unknown reasons the project was cancelled and everything that's left - demo-version with three levels (http://file.qip.ru/arch/LQOhRBXt/Infinity.html?action=downloads), amount of its mentions in the Internet unfairly decreases as the time passes.