Torque3D VS Spring RTS game engine

On a similar note, released games with open sourced code: https://osgameclones.com/?tag=official

https://torque3d.org was used on Airship Dragoon, Marble Blast Gold, Penny Arcade Adventures, Legions: Overdrive and descends from the original Tribes engine.

Hellbreaker, Bit Champs with https://u3d.io

And plenty of successful games with Ogre, including Torchlight: https://www.ogre3d.org/showcase

Torque 2D/3D: Didn't do too much digging around on this one, but both versions are MIT licensed like Godot, but it seems like the project is a little more mature, with built-in multiplayer support. Could be worth looking into as an alternative to Godot if you really want something with MIT licensing.

But from now on, I think I will abandon that, and continue with Torque3D engine : https://torque3d.org/

Torque3D- This one seems great for beginners, as it's free and open-source. The downside is, I'm not sure if it has enough features for complex projects or how secure it is.

Torque3D (the engine used to make Tribes 2, now open-source)

No lie, that overall looks a lot like a game done for a senior design project 15+ years ago using Garage Games' (now https://torque3d.org/) RTS kit.

Torque

Seems the support would be a realistic feature, though, because it's based on https://springrts.com/ that does support MacOS X.

springrts: Designed for 3D rts games. May be worth looking into if that's what you're making. The site is kind of lack luster so I didn't do too much digging around.

...or Total Annihilation Spring, nowadays known as Spring RTS: https://springrts.com/

My current favorite is Beyond All Reason. Before BAR, my favorite was Zero-K. Both BAR and zk use the same game engine, SpringRTS. BAR and zk are very similar to one another, and they're successors for Total Annihilation and Supreme Commander.

Obligatory mention of another open source RTS engine (lineage tracing back to the original Total Annihilation): https://springrts.com/

Non-OSS Engine?

Total Annihilation for sure, the spiritual successor Supreme Commander is great but a bit too different for me. There's an open source recreation that's a bit rough to learn at first, but it's my favorite game of all time called Spring RTS. https://springrts.com/

The other thing is that if you're going to make an engine focused on rts games, you should probably study an existing RTS-focused engine. For example, here's the source code for Spring. Learn what it does, why, and how. You might decide this is good enough for what you want to do. You might decide this is pretty close, and you'll only want to extend it rather than start from scratch. You might decide to still start from scratch, but at least you learned something about requirements/ methods/ etc.

Pretty much any game on the Spring Engine (which Zero-K is on) will work on Linux.