Previously referred to as the 'Doom 3 Engine', Tech 4 is id Software's current licensing platform. Powering games such as Doom 3, Quake 4 and Enemy Territory Quake Wars, Tech 4 revolutionized the use of realtime dynamic lighting as well as other technologies.
For those of you wanting a little more action out of Human Head Studio’s and 3D Realms gravity flipping game 'Prey', we have a small selection of reviews...