OpenLara VS Spring RTS game engine

I didn't notice anything suspicious in his explanation of how the AI works, though he glosses over navigation. I assume he is using the OpenLara engine, in which case he easily has access to level geometry or other parts of the game at runtime that would normally be inaccessible. However when watching the AI play, I got the impression there was two much overlap between what the AI does and says. For example, based upon what I understand of the explanation of how the AI works, the part playing and the part talking are not interacting with each-other. Voice lines are simply generated based upon what is on screen and there is no true common intent behind the AI's actions and speech. This makes me suspect the entire video is simply a scripted imitation of AI.

You can try source engine ports like xash3d diii4a Serious Sam Freedoom OpenLara Quad Touch and Source Engine

It is, it’s the OpenLara engine, so it’s running native code rather than emulating the PSX version.

OpenLara

You can play it online here, the github link on the page also has a downloadable version that plays offline and works with the controller. http://xproger.info/projects/OpenLara/

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.