Chowdren is a blazingly fast runtime for Clickteam Fusion and Scirra Construct.

It's cross-platform, running under desktop, mobile and console platforms.

It is currently used for

  • Konjak: Iconoclasts (Windows, Mac, Linux, Nintendo Switch, PS4, PS Vita)
  • Konjak: Noitu Love: Devolution (Wii U, 3DS)
  • Roll7: NOT A HERO (Windows, Mac, Linux, PS4, XB1, Android)
  • Alonso Martin: Heart Forth, Alicia (Windows, Mac, Linux, PS4, PS Vita, Wii U)
  • GalaxyTrail: Freedom Planet (Windows, Mac, Linux, Nintendo Switch, Wii U, PS4)
  • Team17: The Escapists (Mac, Linux)
  • Nifflas' Games: Knytt Underground (Windows, Mac, Linux, Wii U)
  • ScrewAttack: Angry Video Game Nerd Adventures (Wii U, 3DS)
  • Nifflas' Games: The Great Work (Windows, Mac, Linux)
  • Warhorn Studios: Dodge Club Pocket (3DS)


Chowdren is extremely fast, since your events are converted to optimized C++ code, while the normal Fusion/Construct runtimes use an interpreter.

It works on

  • Desktop: Windows, Linux, Mac
  • Consoles: Nintendo Switch, PS4, XB1, Wii U
  • Handhelds: Nintendo 3DS, PS Vita
  • Mobile: Android, Amazon Fire TV
  • Web: HTML5

This means you can get your game on all desktop platforms, consoles and mobile!

Fusion Support

Chowdren supports the majority of all popular extensions and features from Clickteam Fusion.

As of 2018, this includes functionality from more than 105 extensions and 37 shaders.

An older overview from 2014 of the supported features can be found here.

Also, Chowdren will map common extensions to the platform in question.

For example, Joystick 2 will automatically use PS4/Nintendo 3DS input, Steamworks will use achievements/trophies, and so on.

Construct Support

A large subset of Construct 2 is supported. For more details, please see the forum thread on the Scirra forums: Link

A smaller subset of Construct 1 is supported, but if you would like more details, please get in touch.

If you are interested in Construct 3 support, please get in touch as well. Construct 3 is very similar to Construct 2, so adding support for Construct 3 in Chowdren should be straightforward.

Porting Service

We provide a professional service where we will port your game using Chowdren.

In short, we can take your source project all the way to launch on another platform.

Based on years of Fusion/Construct and porting experience, we can manually optimize and help you make non-trivial changes to the game.

Depending on our schedule, we may have time for your project!

You can mail us at if you would like a quote - serious proposals only!

Commercial License

If you are interested in a commercial license, you can mail us at

Please note that this license is meant for serious developers with a budget only.


Windows benchmark

On average, Chowdren is about 7.7x faster than the normal Fusion runtime on Windows.

This is based on the benchmark here.

Android benchmark

On average, Chowdren is about 49x faster than the normal Fusion runtime on Android.

This is based on the benchmark here.

This was done on a Google Nexus Player, running Android 6.0.

Android comparison

This comparison was done with build Fusion 2.5 (b285.1).

Invert Inc.

Comparison video. First run is the standard Fusion runtime on Android, second run is Chowdren.

AVGN Adventures

Comparison video. First run is the standard Fusion runtime on Android, second run is Chowdren.