Entire Marathon Trilogy Now Free on Steam

Bungie's classic FPS series, including Marathon Infinity, is available with enhanced features, while the reboot remains in development.

Marathon Infinity completes the trilogy's availability on Steam, following releases of the first two games earlier this year.
The Aleph One team has enhanced the games with widescreen HUDs, 3D filtering, positional audio, and 60+ fps support.
Originally released in 1996, Marathon Infinity's campaign offers 20 levels with new enemies and weapons.
The trilogy's Steam release marks its first official availability on Windows, previously exclusive to Mac.
Bungie's upcoming Marathon reboot, now a PvP extraction shooter, is scheduled for 2025 after internal challenges and leadership changes.