reckfellENGINE
RECKFELL ENGINE

A royalty-free game engine

Sell games without engine royalties. No revenue thresholds and no requirement to disclose your project’s source.

Captured in Reckfell Engine
Reckfell Engine · real-time renderingGraphics showcase
  • No share of game revenue
  • No required disclosure of your game source
  • Modified runtime allowed in user products
Captured in Reckfell Engine
Reckfell Engine · real-time renderingGraphics showcase

Keep your game revenue

Game sales, DLC, subscriptions and in-game purchases are allowed without Reckfell royalties. Choose your own business model.

Read the guide
The actual Reckfell Engine editor interface
Reckfell Engine · editor interface

Your project can stay private

Keep your game code and content private. Ship the runtime, including your modifications, with the required license notices.

Read the guide
Windows x64
Editor and game export
C# / .NET 10
Portable SDK included
TPZ / SHA-256
Matching templates and integrity checks

Engine distribution terms

Free forks are allowed under Reckfell Engine License 1.0. Selling the engine or distributing a renamed version requires separate permission.

Read the guide

Games are royalty-free. Selling the engine or distributing renamed versions requires permission.

Reckfell Engine License 1.0

Related features

All features

Questions and answers

Does revenue trigger engine payments?

The current license defines no such threshold for user products. Store/service charges are separate from engine royalties.

Can I sell my own engine fork?

Not under the general free grant: selling the engine needs separate permission. Free forks remain subject to the license.

Start building

Build and export

Download Reckfell Engine

Windows x64, C#/.NET 10 and SharpGraph. Free for personal and commercial games.

Download Reckfell
QUICK LINKSGetting startedEntity hierarchyC# & .NET 10Scenes and prefabs
Reckfell guides and full API K
reckfellENGINE
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One account for the entire Reckfell platform.