idTech

id tech 1 ("Doom Engine")

  • GPL-2.0

  • Doom.

  • Doom II.

  • Doom 64.

id tech 2 ("Quake 1 / Quake 2 Engine")

  • GPL-2.0

  • Quake.

  • Quake II.

id tech 3 ("Quake 3 Arena Engine")

  • GPL-2.0

  • Quake 3 Arena.

  • Call of Duty.

id tech 4 ("Doom 3 Engine")

  • GPL-3.0

  • Doom 3.

  • Quake 4.

  • Wolfenstein.

  • Prey (2006)

id tech 5

  • Proprietary

  • Wolfenstein: The New Order.

  • Wolfenstein: The Old Blood.

  • The Evil Within.

id tech 6

  • Proprietary

  • Doom (2016)

  • Wolfenstein 2: The New Colossus.

  • Wolfenstein: Youngblood.

id tech 7

  • Proprietary

  • Doom Eternal