What is Impostor?

Impostor is a free casual game with spaceship, amongus and impostor elements that you can play online in your web browser on Gameziko. It needs no download, no install and no account. A spaceship is travelling in endless space, and its crew is trying to survive.

How to play Impostor

  1. Press "Play now" on the game screen. Impostor loads inside the player; some games take up to 20 seconds and may show a short ad first.
  2. Control the movement with WASD or arrow keys.
  3. Perform actions by clicking the buttons at the bottom right corner of the screen.
  4. Use the full-screen button at the bottom right of the player for a bigger view, and press Esc to leave full screen.

Game details

CategoryCasual
Tagsspaceship, amongus, impostor
ControlsMouse, Arrow keys, WASD keys
ScreenLandscape (800 ร— 600)
PriceFree
Download or sign-upNot needed
Distributed byGameDistribution
Added to Gameziko30 September 2026

Description from the developer

A spaceship is travelling in endless space, and its crew is trying to survive. There is an impostor among them and they need to stay on guard. The Impostor wants to kill everyone and will stop at nothing, even if it means sabotaging the ship. He can hide in dark corners and wait for his victim, or suddenly jump out of a ventilation shaft and attack from behind. It is difficult to identify him among the crew members, unless he makes a mistake. You wouldn't do that, would you, Impostor?

Impostor: frequently asked questions

Is Impostor free to play?

Yes. Impostor is free to play on Gameziko, with no download and no account needed. Like most free web games, it is funded by ads, so it may show a short ad before or between rounds.

What are the controls in Impostor?

The developer's instructions for Impostor say: "Control the movement with WASD or arrow keys. Perform actions by clicking the buttons at the bottom right corner of the screen."

Can I play Impostor on a phone or tablet?

Impostor is an HTML5 game, so it opens in modern mobile browsers as well as on a computer. Its controls were designed mainly for a mouse, so a computer usually gives the smoothest experience.

What games are similar to Impostor?

If you like Impostor, try Impostor Differences, Crewmates and Impostors Memory and 456 impostor. They are casual games with similar themes, and you can find more in the Casual category on Gameziko.

Good to know

Impostor is made by an independent developer and delivered by GameDistribution, so Gameziko cannot change the game or recover lost progress. Any progress the game saves is kept in your browser on this device. If the game does not start, wait up to 20 seconds, allow ads for gameziko.com and try again, or report the game.