The term Engine could refer to the following:
- Shaw-Fujikawa Translight Engine - Engine used to initiate a Slipspace jump.
- Boosted gravity propulsion drive - Engine used to power Ghosts, Banshees, and other Covenant vehicles.
- Halo 3 Engine - A game engine used to power Halo 3 and Halo 3: ODST.
- HAVOK Physics Engine - Used for Halo 2, Halo 3, Halo 3: ODST, Halo Wars, and Halo 4.
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