A landmark 2001 first-person shooter that popularized console FPS controls and design, pairing sci-fi sandbox combat with vehicular gameplay and cooperative campaign.
- Developer: Bungie
- Genre: First-person shooter
- Platforms: Xbox (2001); PC (2003); later in Halo: The Master Chief Collection
- Mechanics: Two-weapon limit, recharging shield, intelligent enemy AI, vehicles (Warthog, Ghost), co-op
- Notable: Redefined console FPS, influential multiplayer and LAN play, iconic score by Martin O’Donnell and Michael Salvatori