Developer Kaiju Ultimax
Publisher Kaiju Ultimax
Steam App Id 2482870

Roy Rattler

Roy Rattler is a survival-horror FPS about being trapped in a sprawling theme park after a biotech experiment gone wrong brings it's collection of characters to life as murderous mascots! Engage in non-linear exploration and tense combat with limited resources as you search for an escape!

Last Updated: 9/17/2025

Platforms
  • Windows
  • Mac
  • Linux

About Roy Rattler

Roy Rattler is an Adventure, Action, Indie, Simulation, and Early Access game developed by Kaiju Ultimax. It was released on the Steam Store by Kaiju Ultimax.

It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.

According to Steam’s category system, Roy Rattler supports the following features:

  • Single-player
  • Family Sharing

Media & Sceenshots

Watch the featured video for Roy Rattler and see the latest screenshots from the Steam Store.

Roy Rattler Featured Screenshot #1

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Frequently Asked Questions

Soures & References

Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in real-time to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.

Roy Rattler data has been sourced from:

  • Valve Corporation. (2025, September 17). Roy Rattler on Steam. Steam Store.
  • Valve Corporation. (2025, September 17). Roy Rattler. Steam Community Hub.

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