Frosty Wren Studios

Science, games, engines

We build interactive physics simulations, games, and the software engines behind them.

A ray-traced black hole, its accretion disk bent over the shadow by gravity
Frosty Wren Labs Physics simulations Astrophysics brought to life. Black holes, pulsars and more, rendered from first principles right in your browser. See what these exotic objects really look like up close. Explore the Labs →
Defense of Kyrath
Games Defense of Kyrath Our first game: a whimsical fantasy tower defense with a 13-level campaign, 13 skirmish arenas, a roguelike ascent mode, 9 wardens and over 100 voice lines. Released on Steam in June 2026, since retired. See the game →
A market town generated by Kiln from a single JSON recipe
Tools Engines and tooling
  • Kiln procedural 3D asset pipeline
  • TiGen procedural 2D tile and sprite generator
  • Headless testing automated balance tuning
All tools →

How we work

Built carefully, explained openly

  1. Computed, then checked

    Our simulations are calculated from the underlying physics and tested against independent reference code. Our game art comes out of our own procedural engines.

  2. Tools first

    We build the engine before the content. Procedural pipelines and headless test harnesses let us build ambitious work fast and change it safely.

  3. We show how it’s built

    Every simulation carries its method, tests and limits on the page, and the Dev Journal explains how our games and tools work.

About the studio →

Latest writing

From the Dev Journal

All articles →  ·  Musings →

Get in touch

Contact

Questions, feedback, corrections to a simulation, or just want to say hello?

info@frostywren.com YouTube → Discord → Defense of Kyrath, previously on Steam →