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Introducing reTS

· One min read
The reTS project
reverse-engineering → modernization

Welcome to the reTS devblog.

Last verified against the project charter: 2026-07-15.

reTS is an early project to build a faithful, standalone, moddable reimplementation of the classic Westwood isometric RTS engine—the one behind the Command & Conquer titles Tiberian Sun, Red Alert 2, and Yuri's Revenge. Accuracy is the non-negotiable goal; modern, opt-in layers are planned only on top of verified behavior.

Why this devblog exists​

Rebuilding a decades-old engine faithfully is a long journey: understand exactly how the original behaves, rebuild it so it matches, prove the match, and only then extend it with modern conveniences and a native modding path. This devblog follows that journey — the milestones, the surprises, and the design decisions behind the move from a faithful reconstruction to a modern, extensible engine.

What to expect​

  • How the engine works, explained for a general audience.
  • The modernization story — tooling, configurable limits, modern presentation, and native scripting/modding — always layered on top of a faithful core.
  • Milestones as reTS grows toward being playable end to end.

This is an early post on an early project. There's a lot ahead — thanks for following along.