OpenTS reconstructs Command & Conquer: Tiberian Sun specifically as a lightweight standalone executable, while OpenRA covers the earlier Tiberian Dawn, Red Alert and Dune 2000 with a much larger, decade-plus-established community. Pick OpenTS if Tiberian Sun is the game you actually want, OpenRA for the bigger, more mature scene.
Both rebuild classic Westwood Command & Conquer games, but they target different entries — OpenTS specifically reconstructs 1999's Tiberian Sun, while OpenRA covers the earlier Tiberian Dawn, Red Alert and Dune 2000 together.
| OpenTS | OpenRA | |
|---|---|---|
| Source game(s) | Command & Conquer: Tiberian Sun specifically | Tiberian Dawn, Red Alert, Dune 2000 |
| Engine | Original bgfx-based standalone rebuild | OpenRA engine |
| Download size | ~15 MB | ~350 MB |
| Maturity | Newer project, 2024 | Established since 2010, mature ladder and mods |
| Netcode | Modern UDP netcode | Established, mature multiplayer |
| Community size | Small, growing | Large, long-established |
You specifically want Tiberian Sun, rebuilt as a lightweight standalone executable.
You want the earlier C&C games with a much larger, more established community and ladder.
Classic Command & Conquer Tiberian Sun rebuilt from the ground up: crisp modern bgfx graphics, lag-free UDP multiplayer, robust mission scripting, and total fidelity to Westwood's 1999 RTS masterpiece. You can play at native 1440p or 4K with instantaneous bgfx rendering, smooth scrolling, and zero legacy DirectDraw stutter.
OpenRA scratches a very specific itch: remembering how much fun old Command & Conquer was, without having to treat a 1990s PC like a museum exhibit. We picked it because it doesn't merely preserve those games, it understands what made them fun and gives them room to breathe. The result feels familiar within seconds, but the modern controls, multiplayer, balance changes, and community creativity make it surprisingly easy to get hooked again.
OpenTS reconstructs Command & Conquer: Tiberian Sun specifically as a lightweight standalone executable, while OpenRA covers the earlier Tiberian Dawn, Red Alert and Dune 2000 with a much larger, decade-plus-established community. Pick OpenTS if Tiberian Sun is the game you actually want, OpenRA for the bigger, more mature scene.
You specifically want Tiberian Sun, rebuilt as a lightweight standalone executable.
You want the earlier C&C games with a much larger, more established community and ladder.
Yes. OpenTS is released under OpenTS engine: GPL-3.0; Tiberian Sun + Firestorm assets: freeware and OpenRA under Open Source (GPL-3.0). Both are entirely free with no trials, paid tiers or in-game purchases.