Steam Playtests
OUTLIER

Open now · Join instantly

OUTLIER playtest

by PEPPERTUNA

OUTLIER is an online hide-and-seek game for up to 16 players, set in an uncharted zone of the Backrooms where strange symptoms have begun to appear. Blend into a crowd of identical hazmat suits and secretly let out the unbearable urge. The Overseer is watching. Can you act normal to the end?

Join playtest Steam store page

Anyone with a Steam account can join, and it's free.

Access
Instant
On playtest since
Nov 8, 2026
Planned release
Dec 2026
Developer
PEPPERTUNA
Platforms
Windows
Players
Multiplayer, Online PvP, PvP
Languages
Arabic, English, French, German and 10 more

How to join the OUTLIER playtest

  1. Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
  2. Use the OUTLIER playtest signup there. You're in straight away, with nothing to pay.
  3. The playtest shows up in your Steam library, ready to install and play.

New to playtests? How Steam playtests work

About OUTLIER

An online hide-and-seek game for up to 16 players. Crews sent into an unmapped zone of the Backrooms have begun reporting symptoms. Blend into the crowd, relieve your symptoms in secret, and don't let the Overseer notice.

HIDE IN THE CROWD

Act Natural. Drop into a level full of staff in identical hazmat suits. Walk like them, stop like them, sit when they sit. One wrong move and you stand out.

YOUR SYMPTOMS WON'T WAIT

Relieve It in Secret! Dance. Moonwalk. Fart. Breakdance. Stagger around drunk. Beatbox. And it only gets weirder. The urge keeps building. Relieve it behind the Overseer's back, or it bursts out in front of everyone.

THE OVERSEER IS WATCHING

Eyes Everywhere. Overseers patrol with guns, looking for anyone who acts a little off. Get caught and you hit the floor. They can order a roll call at any time. Don't forget to salute!

PICK YOUR RULES

• Normal: Relieve your symptoms in secret and survive until time runs out. The Overseers are hunting for anyone showing symptoms, and they won't stop until every last one of you is caught.

• Infection: Get caught and you stand right back up as an Overseer. The hunt snowballs, and your friends become the problem.

• Limited ammo: Every bullet counts. Waste all your shots on innocent staff and you'll be the one hitting the floor.

• Free-for-all: No Overseers, no guns. The level is full of real staff and players pretending to be staff. Suspect everyone and kick anyone who looks off! But get it wrong, and everyone around you just watched you do the one thing real staff never do: a dropkick. Last one standing wins.

Three levels are open: Level 0, the Backrooms. Level 5, a mall. Level 6, a park.

FEATURES

  • 2–16 players online
  • Up to 160 staff in the crowd
  • Normal, Infection, Limited ammo and Free-for-all modes
  • In-game voice chat
  • Streamer mode with copyright-free music and a hidden server code
  • 14 languages

STREAMING & VIDEOS

Gameplay videos and streams are welcome, and you're free to monetize them. Solo or with an agency, no need to ask first. Just two small requests:

• Put "OUTLIER" in your video title.

• Link this Steam page in your description. (Optional)

From the game's Steam page.

All Casual playtests