Marathon has rolled out its experimental Vault Breaker PvE mode, giving players a new way to experience the game without facing rival teams. The mode is now live and shifts the focus away from player-versus-player encounters and toward surviving a more demanding run.

According to the available details, Vault Breaker removes opposing squads entirely and sends players into Marathon’s toughest map. Runs can be tackled solo or with a group of up to three, creating a different pace from the game’s usual competitive setup while still keeping the challenge level high.

The mode also includes item rewards, though the early framing suggests players may want to keep expectations measured. With Vault Breaker described as experimental, it appears to be more of a test case for PvE-focused gameplay than a fully transformative new pillar for Marathon.

That makes this launch notable for players curious about a less PvP-heavy Marathon experience, but it may not satisfy anyone hoping for a massive overhaul. For now, Vault Breaker looks like a tougher, more isolated run designed to explore how PvE fits into the game’s broader formula.