Native Apple silicon
Runs as a native arm64 app on Macs, iPhone and iPad, drawing through Metal (via OpenTS’s renderer).
// STATUS: ALPHA
Tiberian Sun and Firestorm, native on Apple silicon.
SiliconTS brings Command & Conquer: Tiberian Sun and Firestorm to Apple silicon Macs, iPhone and iPad using the open-source OpenTS engine. Free macOS alpha available now; iOS download coming soon.
Runs onApple silicon MacsiPhoneiPhone DuoiPad
The macOS build is version 0.1.0 alpha for Apple silicon (M1 or later) on macOS 13 Ventura or newer, signed and notarized by Apple.
You need your own copy of the game. SiliconTS does not include any game files.
- VERSION
- 0.1.0 alpha
- SHA-256
- eaa24ee05530749a497a90869bb0bd9dfce6a68654b3be4f85068cffa4eee93e
To verify, run shasum -a 256 SiliconTS-0.1.0.dmg in Terminal and compare.
// A note before you download
SiliconTS is a hobby project. I just wanted to play the Tiberian Sun campaign again on my Mac and thought other people might like to as well. I did not write the game’s engine. All of that is the work of the OpenTS team and the wider Command & Conquer community, who spent years rebuilding it, and none of this would exist without them.
What I added is a thin layer to make it run natively on Apple silicon, plus an installer. I built that layer with the help of AI (Claude Code), and I want to be open about that. It is alpha software, so please expect rough edges, and please don’t pester the OpenTS developers about problems in this build. Report them here instead.
// Credits and thanks
OpenTS
ZivDero and tomsons26 (project leads) and all OpenTS contributors. SiliconTS is a macOS port of their engine: a compatibility layer, fixes, a native installer and launcher, and a few conveniences wrapped around it. Please support and use OpenTS directly.
OpenTS on GitHub- CCHyper, for his work on Electronic Arts’ Command & Conquer open-source releases that OpenTS builds upon.
- Electronic Arts, for releasing source code for classic Command & Conquer titles under the GPL.
- The wider Command & Conquer community, for years of research, tools and documentation.
- Westwood Studios, for making the game.
If you want the real thing, with full support and a living community, please go to OpenTS.
// What works
Guided setup
Point it at discs, disc images, an installed copy or an archive. It detects Tiberian Sun and Firestorm, copies only what it needs, verifies it, then tells you which originals you can safely delete.
Resolution options
Detects your display’s native size and offers zoom levels and classic 4:3 sizes, filling the screen without the picture becoming tiny.
Change resolution mid-game
From the in-game options menu.
Add Firestorm later
From the same setup window.
The full single-player game
Campaigns, skirmish, music, sound and cutscenes.
// Tested with
- Tiberian Sun Retail 2 Disc Set (ISO/MDF/MDS/BIN/CUE, Real CDs)
- Firestorm Expansion Disc (ISO/MFD/MDS/BIN/CUE, Real CDs)
- Command & Conquer: The First Decade DVD (ISO/MFD/MDS/BIN/CUE, Real CDs)
Other releases (Steam, EA App, regional versions) are untested and may need the patched 2.03 files. Tell me what works and what doesn’t.
// Not working yet
- Network multiplayer: not working yet. Do not expect to play online or against Windows players.
- Text drawn by some older dialogs may be missing.
- Apple silicon only: M1 or later Macs, and iPhone or iPad. No Intel Mac build.
- iOS: the iPhone and iPad build is not available to download yet.
- Saves from this build may not load in other builds of OpenTS, and vice versa.
- It is alpha: crashes and rough edges are likely.
// How it works
- 01
Download the .dmg and drag SiliconTS to Applications.
- 02
Open it and drop your game discs, images or install folder onto the window.
- 03
Press Install, then Play.
// Source code and licence
SiliconTS is free software under the GNU GPL v3 with the additional terms that apply to the Electronic Arts source, the same as OpenTS.
// FAQ
Can I play Command & Conquer: Tiberian Sun on Apple silicon?
Yes. SiliconTS provides a native Apple silicon macOS alpha for Tiberian Sun and Firestorm using the OpenTS engine. You need an M1 or later Mac, macOS 13 or newer, and your own game files.
Is Tiberian Sun available on iOS, iPhone and iPad?
SiliconTS supports iPhone and iPad, including iPhone Duo, but the iOS build is not available to download yet. Subscribe to project updates for release news.
Do I need the original game?
Yes. SiliconTS ships no game data. You supply your own copy.
Is this legal?
SiliconTS contains no game assets. It reads the files you already own. It is not affiliated with or endorsed by Electronic Arts or the OpenTS project.
Which devices are supported?
Apple silicon Macs, iPhone, iPhone Duo and iPad. The macOS build is available now; the iOS build is still to come.
Will it work on my Intel Mac?
No. Apple silicon only.
Can I play online?
Not yet.
Where are my game files kept?
In ~/Library/Application Support/SiliconTS. You can remove them from the app’s Maintenance menu.
Why does macOS ask me to confirm opening it?
Because it was downloaded from the internet. The app is signed and notarized by Apple.
How do I report a bug?
A bug report link is coming soon and attach the log from ~/Library/Logs/SiliconTS. Please don’t report problems with this build to the OpenTS developers.
Was AI used?
Yes. See the note above.
Project updates
Release news for SiliconTS and SiliconRA2, when there’s something worth sharing.