Among Us Story: On Guard is a single-player narrative adventure set in the Among Us universe, and a free demo is live right now. You play as the newest recruit at MIRA R&D, stepping into a simulator to train as a Crewmate, learn tasks, and start solving murders. The catch is the timing, because the demo is only available for a limited window.
Quick answer: Install and play the Among Us Story: On Guard demo on Steam or Nintendo Switch before it is removed on June 22nd, 2026.
Demo availability and platforms
The demo went live on June 15th, 2026, and stays up until June 22nd. After that date it goes away, so there is a hard cutoff if you want to try it before the full game arrives. There is no announced release date for the full version yet.
| Detail | Information |
|---|---|
| Developer | Innersloth |
| Type | Single-player narrative mystery |
| Demo window | June 15 to June 22, 2026 |
| Platforms | Steam and Nintendo Switch |
| Price | Free demo |
| Estimated full-game length | About two to five hours |
How to start the demo on Steam
You can confirm it worked when the game opens to the MIRA R&D intro and drops you into the simulator. Once inside, the story kicks off as you discover that Cook has been murdered.
What the demo includes
The demo opens at the very start of the story. As Guard, you are walked in on by two other crewmates right after Cook’s body turns up, and the whole ship quickly turns on you, convinced you are the Impostor. From there it plays out as part murder mystery and part minigame collection.
- Move around rooms to avoid drawing attention from other crewmates.
- Use vents to reach areas behind locked doors.
- Run classic Among Us minigames, such as a timed card swipe to lock or unlock doors.
- Search for clues and follow the case, with Guard narrating in a noir-style inner monologue.
For the card swipe, the timing matters. You press the shoulder buttons in sequence to swipe from left to right at the correct speed, the same kind of skill check familiar from the main game.
Note: The setup is a Crewmate training program, so you learn to identify Impostors, and there can be more than one. Expect new tasks alongside the investigation rather than the usual multiplayer rounds.
Where On Guard fits in the Among Us universe
Innersloth describes On Guard as a smaller “pit stop” project, made to give the team a break from the live-service cycle of the main game while still building inside the same world. CEO and co-founder Forest Willard framed the concept as taking the everyday Crewmate experience and turning it into a detective mystery, where an Impostor is present, and you experience the fallout rather than playing as one.
The studio treats every session of Among Us as its own canon, so On Guard is positioned as one more story in that world rather than a fixed history for any specific color. Willard noted that Innersloth wants to keep exploring which genres suit the different Crewmate roles, without committing to specifics.
If you want to weigh in, the team is asking players to share feedback on its social channels during the demo window. With the cutoff set for June 22nd, the simplest move is to install it now and play through the opening case before access closes.
