Outlast Trials Invasion is the PvP mode that arrived on 21 October 2025 with Program Geister. Players take the role of Imposters, who hunt Reagents, or Reagents, who must do their objectives and survive. It unlocks at Therapy Level 30 and has its own gadgets, ranks and timers.
How Outlast Trials Invasion works
You open a terminal in the Sleep Room, play solo or in a group of two to four, and choose a role: Reagent, Imposter, or Quick Play, which alternates. Imposters are Reagent-style hunters that deploy into the trial after a retreat timer, so the timers below decide how much time the Reagents get. Read the Program Geister guide for the event that introduced it and the best loadout guide for Reagent sets. For the other long mode, see the Escalation guide.
Imposter retreat timers
| Situation | Time |
|---|---|
| 1 Imposter (3 minutes against a solo Reagent) | 5 minutes |
| 2 Imposters | 3 minutes |
| 3 to 4 Imposters | 2 minutes |
| After a down or execution | 25 seconds (30 with the Retreat chem) |
| Cooldown between deployments | 30 seconds, plus 15 seconds per health bar lost |
| After an Imposter death | 1 minute 30 seconds |
Imposter gadgets and amps
Six Imposter gadgets unlock at Therapy Level 30: Mimic, Stim, Neuroshock, Steel Trap, Motion Sensor and Ex-Pop Bait. You can equip three. The Imposter Knife, which can slash and stab, is always unlocked. Some Reagent amps change in Invasion: Last Chance survives one fatal Imposter slash per trial.
Ranks and grade points
Rewards come at the last rank of each tier, and rank resets each season. Grade points run from 5 for an F or D- up to 60 for an A+: D is 10, C is 25, B is 40 and A is 55, with the plus and minus grades in 5-point steps between them. Reagents who are never invaded earn nothing, and invasions from your friend list give nothing to either side.
| Tier | Rank points needed (III, II, I) |
|---|---|
| Initiate | 25, 50, 75 |
| Bronze | 100, 150, 200 |
| Silver | 250, 300, 350 |
| Gold | 400, 500, 1,000 |
Outlast Trials Invasion FAQ
What level unlocks Invasion?
Therapy Level 30.
How many players can play Invasion?
Solo or in groups of two to four. See the crossplay guide for platforms.
Do my amps work in Invasion?
Many do, some with Invasion-specific effects. Last Chance, for instance, survives a fatal Imposter slash once per trial.