Halo: Combat Evolved · Mac / PC · Build: July 1999 · Discovered: 1999 · Public reveal (Macworld NY)
The version of Halo Steve Jobs unveiled at Macworld New York in 1999 was an open-world, third-person Mac game built on the Myth engine — barely recognisable as the Xbox launch shooter it became.
On 21 July 1999, Steve Jobs brought Bungie co-founder Jason Jones on stage at Macworld New York to reveal Halo, which Jobs called one of the coolest games he had ever seen. The Halo shown there was a world away from the 2001 Xbox classic. It had begun life behind closed doors as a real-time strategy game in which the player commanded ground units and vehicles, and by its public debut it had become an ambitious open-world third-person shooter running on Bungie’s Myth engine, developed primarily for the Mac and PC. The Mac build shown was thrown together so hastily that its sound did not work during the demo. In 2000 Microsoft acquired Bungie, and Halo was retooled into a first-person shooter and made the flagship launch title for the original Xbox — one of the most consequential platform switches in gaming history.
The 1999 Macworld reveal is one of gaming’s great what-ifs. Halo was, at that moment, an Apple showcase — a technically dazzling Mac and PC game that drew a standing ovation from a crowd not known for cheering video games. Had history gone slightly differently, Halo might have shipped as a Mac exclusive and defined a very different platform.
Instead, Microsoft’s 2000 acquisition of Bungie redirected the project entirely. The perspective flipped to first-person, the sprawling sandbox tightened into a directed campaign, and the game was rebuilt to sell a brand-new console. The result launched the Xbox brand and reshaped the console shooter for a generation. The gulf between the 1999 build and the 2001 release makes it one of the most dramatic examples of how much a game — and an entire industry’s trajectory — can change between reveal and release.