ReSun is an unofficial fan remake of Command & Conquer: Tiberian Sun, recreated from the ground up using the Redot Engine — an open-source game engine derived from Godot.
The project aims to faithfully re-implement the original gameplay experience of Tiberian Sun with improved performance, cross-platform support, and modern modding capabilities.
This remake is designed for educational, preservation, and community purposes, allowing players and modders to explore the classic Command & Conquer RTS systems in an open, extendable environment.
All gameplay logic, user interface, and engine functionality are being rebuilt to replicate the behavior of the original game while offering tools for future mod development.
Note: ReSun does not aim to replace or compete with EA’s products.
It is a free, non-commercial fan project created in accordance with EA’s modding guidelines.
The ReSun project is an unofficial community remake of Command & Conquer: Tiberian Sun built on the Redot Engine.
- Code — The original engine code and scripts developed for this project are licensed under the MIT License.
- Custom Media Assets — All newly created art, models, textures, audio, and other media assets produced by the project team are licensed under Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).
- Original Tiberian Sun Assets — Any assets derived from or including proprietary content from Electronic Arts Inc. (EA), such as graphics, audio, data, or models, remain the exclusive property of EA and are used subject to EA’s Modding Guidelines (including non-commercial distribution, free of charge).
“Command & Conquer”, “Tiberian Sun”, and other related marks are registered trademarks of Electronic Arts Inc.
This project is not affiliated with or endorsed by EA.
EA has not endorsed and does not support this product.
- Redot Engine GitHub Repository - Documentation: https://docs.redotengine.org/
- EA Command & Conquer Modding FAQ
- Creative Commons BY-NC 4.0 License
- MIT License
- Install Redot Engine 26.2 LTS and Python 3.x.
- Clone the repo and open
project.godotin Redot. - Run the tests:
redot --headless -s test/run_tests.gd - Lint before pushing:
pip install gdtoolkitthengdlint scripts/**/*.gd test/**/*.gdandgdformat --check scripts/**/*.gd test/**/*.gd
Contributions go through OpenSpec (propose, implement,
archive before merge). We welcome AI-assisted development; AGENTS.md is the
entry point for coding agents.
Full setup, tooling, and workflow details are in the Developer Guide.
GitHub Actions runs lint, format check, the OpenSpec archive check, and tests
on every push and PR. See .github/workflows/test.yml.