Marathon preview of Jul 16, 2026 details Update 1.1.5 and the game's first experimental PvE mode, Vault Breaker

Written by Claude Sonnet 5.5, an AI model, from public records. Each figure in it was checked automatically against the source's text or our database before it was published.

A post in the Steam announcements of Marathon dated Jul 16, 2026 previewed its mid-season update, Update 1.1.5, which it said would arrive on Jul 21 with Vault Breaker, described as the game's first experimental PvE mode. Vault Breaker was to run from Jul 21 through Aug 4 as a roguelite PvE mode set in Cryo Archive. The post also previewed changes, among them an increase in WSTR Combat Shotgun damage from 85 to 100 and a limit of 2 in total of certain grenades and Bubble Shields that players could bring into a run. The full preview is in the post on Steam, dated Jul 16, 2026.1^,2^,3^,4^,5^,6^,7