Invasion

TRUST NO ONE
Complete Trials with a risk of being invaded by imposters - or invade trials as imposter and hurt the reagents.

Invasion is a Player versus Player game mode in The Outlast Trials introduced on October 21st, 2025 during the Program Geister 2025 update.^[1] In the game mode, players can take the role of Imposters to sabotage Reagents present in a trial, or play as Reagents to complete and survive the trials whilst avoiding the Imposters.

Available in solo and groups of 2-4 players, Invasion is available through the Terminal in the Sleep Room.

Information[]

Roles[]

When opening the Invasion game mode, the players are presented with two roles that they must choose:

Role	Description	Photo
	Reagents Complete Trials with a risk of being invaded by Imposters.
	Imposters Invade Trials as an Imposter and hurt the Reagents.
Quick Play Alternate between Reagent and Imposter

When players select the "Quick Play" option, they will be placed into Imposter or Reagent role at random and given bonus XP. After each match, the teams will be placed into a new Trial with roles swapped. The Invasion Experimental Therapy supports solo play and groups of two, three, or four players.

Seasonal Ranking[]

With the release of Season 5: Project Messiah, Invasion can now offer unique rewards for participating in its game mode. The player's Invasion Rank increases as they complete matches, whether as a Reagent or an Imposter. Rewards are given once the player reaches the final rank of each tier, such as Bronze I and Silver I. The grade at the end of each Trial determines the amount of Rank Points awarded.

Rank resets for all players whenever the new Season arrives in The Outlast Trials, along with the rewards.

Rank Points[]

Rank	Rank Points required	Rewards
Unranked	0	N/A
Initiate III	100 (per rank)
Initiate II	100 (per rank)
Initiate I	300	Profile Icon
Bronze III	500 (per rank)	N/A
Bronze II		N/A
Bronze I		Profile Icon Frame
Silver III		N/A
Silver II		N/A
Silver I		Profile Icon Frame
Gold III	1,000	N/A
Gold II	1,500	N/A
Gold I	3,000	Profile Icon Frame Outfit

Grade Points[]

Grade	Rank Points awarded
F or D-	5
D	10
D+	15
C-	20
C	25
C+	30
B-	35
B	40
B+	45
A-	50
A	55
A+	60

Gameplay[]

Imposter Deployment[]

Not all Imposters are deployed at once; some hunt while others monitor the Trial Environments via surveillance cameras.

Imposters will be on a two minute timer while in the Trial and will be shocked to death if they do not return to the insertion gate. When an Imposter downs or executes a Reagent, their timer gets cut down to 25 seconds (30 seconds with Retreat chem) so they are prompted to retreat to the Insertion Gates immediately. They will also be ordered to retreat when a Reagent is in the confined areas of the Trial such as the cutscenes in Drill the Futterman and Deface the Futtermans. Once a Reagent is downed on their last life and the Jammer Rig's Pacemaker is unavailable, the Imposter's retreat timer stops permanently and the Murkoff Corporation will order them to execute the final Reagent.

After an Imposter returns, the next one in line must wait for a thirty second cooldown before deployment. However, each health bar lost adds a fifteen second penalty to this cooldown, while an Imposter’s death results in a total one minute and thirty second cooldown. The rotation will continue until all Imposters run out of lives, the Trial ends, or all Reagents are killed.

Imposters will also be able to hear the voice of their victims when they are being killed – this can be turned off in the Pause menu. When all Imposters are killed, they will automatically leave the trial and the Reagents will be notified that the Invasion is over.

The number of deployed Imposters scales with the number of Reagents in the Trial:

1–2 Reagents = One Imposter deployed at once.
3–4 Reagents = Two Imposters deployed at once.

Once all Reagents have completed their final main objective, additional Imposters that have not run of lives will be deployed at once. This may vary based on the amount of Reagents present in the Trial.

Anti-Stalling Measures[]

At the start of the Trial, Imposters must wait for the Reagents to proceed before they can deployed or wait for their 3-minute timer. When the 3-minute timer has passed but the Reagents have not made progress to start the first objective, Imposters will be deployed and start hunting the Reagents. When Reagents are stalling the Trial using confined areas where Imposters can't reach them, they will be terminated via electrocution.

Solo scaling[]

When the trial starts with one Reagent, they are given three respawn lives to compensate the lack of teammates and the respawn pills will not spawn at all. They can only deal one Imposter at a time until the main objective is completed, where two Imposters can invade simultaneously but only once. Similar to regular trials, the objectives are also scaled down and this also applies when there are two Reagents in the trial.

When the trial's main objective is completed, the shuttles will be called automatically. In Intensive difficulty, they cannot exit the trial without completing the secondary objective despite the countdown already starting. This also applies in co-op when only one Reagent is left alive in the Trial.

Progression and Difficulty[]

Invasion difficulty will scale as the players play: Early runs will feature fewer Trial options and no Ex-Pop Specialists. As they progress and play more of the Invasion Experimental Therapy, more Trials will be added to the pool and Ex-Pop Specialists will be deployed. The scaling is:

1-10 matches: Minimal pool of Trials (~3).
11-50 matches: Limited pool of Trials (~20).
50+ matches: All Trials (40+) and Specialist Ex-Pop are deployed during the Trials.

Matches

Pool of Trials

1-10
(Introductory)

Trial Environment	MK-Challenges
Police Station	Cancel the Autopsy
Orphanage	Feed the Children
Fun Park	Punish the Miscreants

11-50
(Standard)

Trial Environment	MK-Challenges
Police Station	Cancel the Autopsy • Teach the Police Officer
Orphanage	Feed the Children • Foster the Orphans • Gather the Children of God
Fun Park	Punish the Miscreants • Open the Gates • Beguile the Children
Courthouse	Escape the Courthouse • Fuel the Release • Crush the Sex Toys
Toy Factory	Shutdown the Factory
The Docks	Empty the Vault • Stash the Contraband
Downtown	Kidnap the Mistress
The Suburbs	Get Out the Vote
Shopping Mall	Investigate the Minotaur

50+
(Intensive)

Trial Environment	MK-Challenges
Police Station	Cancel the Autopsy • Sabotage the Lockdown • Release the Prisoners • Teach the Police Officer
Orphanage	Feed the Children • Foster the Orphans • Gather the Children of God • Reunite the Family
Fun Park	Punish the Miscreants • Open the Gates • Drill the Futterman • Redeem your Freedom • Beguile the Children
Courthouse	Destroy the Evidence • Escape the Courthouse • Tilt the Scales of Justice • Fuel the Release • Sentence the Prosecuted
Toy Factory	Crush the Sex Toys • Incinerate the Sex Toys • Shutdown the Factory • Fumigate the Factory
The Docks	Poison the Cattle • Empty the Vault • Stash the Contraband • Cook the Informant
Downtown	Kidnap the Mistress • Spread the Disease • Traffick the Product
The Suburbs	Get Out the Vote • Disrupt the Neighborhood
Shopping Mall	Investigate the Minotaur • Fabricate the Scandal

Difficulty[]

Unlike other programs, Invasion does not use traditional difficulties where it would increase the enemy and trap density, and decrease item resources. The Psychosurgery difficulty is also not present for this game mode.

Difficulty	Variators
INTRODUCTORY & STANDARD		Invasion The Trial can be invaded by real player imposters.

INTENSIVE		Invasion The Trial can be invaded by real player imposters.
INTENSIVE		Mandatory Secondary Objective Reagents must complete the randomly choosen secondary objective to exit the Trial.

Matchmaking[]

When playing as an Imposter, matchmaking prioritizes invading Reagents playing Trials from the Invasion program.

If none are available, it expands to invading Trials from other programs (Program Genesis, Limited-Time Events, Routine Therapies, or Rebirth).
Invasion matchmaking will use their current group.
Invasions are not guaranteed – they remain an unpredictable surprise.
Invader matchmaking priority increases by playing Reagent matches or based on time spent waiting in the matchmaking queue.

Global Invasion[]

Global Invasion is an exclusive feature added when the player's Therapy Level reaches Level 30 and only works on Program Genesis, Limited-Time Events, Routine Therapies, and Rebirth. When unlocked, the player has an option to enable this publicly or friends only in privacy settings. This allows other players to invade their trial as an Imposter at anytime in those certain programs.

Players can also invade their friend's trials via their Friend List if their privacy setting is also enabled.

Global Invasion settings have no affect on the Invasion gamemode itself, as it is intended to be played against the Invaders/Imposter players.

Tasks[]

Task	Rewards
Complete 1 invasion match.	500
Complete 5 invasion match.	500
Complete 25 invasion match.	1,000
Complete 50 invasion match.	Poster • 1,500
Complete 100 invasion match.	2,500
Reagents
Use your rig against an imposter 40 times.	500 (per task)
Hit an imposter with a projectile 50 times.
Kill 20 imposters.
Survive 10 invasions.
Survive an invasion without taking any damage from the imposters.
Imposters
Acquire on Imposter Chem.	500 (per task)
Acquire all Imposter Chems.
Slash reagents 25 times.
Stab reagents 10 times.
Execute 5 reagents.
Pull a reagent out of a hiding spot.
Use a hiding spot to pounce on a reagent.
Seasonal
Reach invasion rank Initiate III.	25 • 250 (per task)
Reach invasion rank Initiate II.
Reach invasion rank Initiate I.
Reach invasion rank Bronze III.	50 • 500 (per task)
Reach invasion rank Bronze II.
Reach invasion rank Bronze I.
Reach invasion rank Silver III.	75 • 1,000 (per task)
Reach invasion rank Silver II.
Reach invasion rank Silver I.
Reach invasion rank Gold III.	100 • 2,000 (per task)
Reach invasion rank Gold I.
Reach invasion rank Gold I.

Documents[]

Invasion features evidence documents that are related to the story:

Theme	Folder	Documents
SINYALA H.R.	Beloved	Bizarre Millionaire Suicide
INVASION	Trust	Upcoming Modifications • Who Do You Trust • Penisneid
INVASION	Invasion Conception	Putting a Knife In It • Imposter Reagent Insertion • Give them Weapons • Disassociation • Kill for Me • Skinner Man Changes

Version History[]

October 21, 2025 (Program Geister & Invasion)

Added Invasion game mode into the game.

October 22, 2025 (Invasion / Hotfix #1)

Fixed voice chat widget overlap when spectating cameras.
Fixed FAILED Stamp being displayed for Imposters in result screen.
Fixed tutorial text being displayed when Imposters are unleashed at the end of a trial.
Fixed invasion rewards not always being granted to Imposters.
Reduced amount of revive syringes that spawn through the Invasion Experimental Therapy.

October 23, 2025 (Invasion / Hotfix #2)

Fixed an issue where Imposters would receive an "F" and no rewards if Reagents would leave the match.
Fixed some camera issues (jittering) in spectator mode.
Tweaked global invasion so players can get invaded more often in regular Trials (Genesis, Limited-Time Events, and Routine Therapies).

October 28, 2025 (Invasion Hotfix #4)

Fixed the friend Invasion system so it properly joins the target player every time.
Group Finder will now match players together that have the same "Global Invasion" Privacy Setting value.
Fixed an issue where Invasion tasks could be part of the Daily Tasks.

November 5, 2025 (Invasion Hotfix #5)

Invasion Matchmaking Adjustments
- Implemented a new priority system to increase the overall chance of being selected as an Invader.
- Invader matchmaking priority now increases by playing Reagent matches.
- Invader matchmaking priority now also increases based on time spent waiting in the matchmaking queue.
Anti-Stalling Measures
- Added a 3-minute maximum timer at the start of each Trial before Invaders are deployed.
- Added a 30-second delay after death, requiring players to either enter Spectator Mode, use a Respawn Pill, or trigger Self-Revive.
Story Trials have been removed from the Invasion program but remain available through Global Invasions.
Fixed a bug that caused secondary objective tasks to complete automatically after an Invasion match.

December 9, 2025 (Project Messiah)

Imposters is now to “Hurt the Reagents”, and not necessarily eliminating them. Disruption is the core of the role.
As an Imposter, your current grade is now always visible in the HUD, updating dynamically as you perform actions during an invasion.
Imposters can now earn a high score even if Reagents complete the Trial.
Their performance is based on how effectively they disrupt and pressure Reagents, not on total elimination.
High Tier Trials (50+ Invasion matches): Reagents must now complete a random secondary objective before they can exit the Trial.
Anti-Stalling Measures: New rules prevent prolonged stalling in confined areas. Reagents who fail to progress within the allotted time will be terminated by electrocution.
Shuttle doors now automatically open when only one Reagent remains alive in the Trial.

December 12, 2025 (Project Messiah / Hotfix #1)

Fixed an issue where the Rank Points pop-up would stay displayed forever at the end of a match.
Fixed an issue where Imposters wouldn't get their reward when all Reagents left the Trial.
Fixed an issue where players with different Invasion Privacy Options could find eachother through the Group Finder matchmaking.