I'm not sure if "akin" is really the right relationship to Total Annihilation given that it has literally the same units and maps in it, in some cases with the names lightly fiddled with presumably for trademark reasons. :)

I was a big fan of Total Annihilation back in the day, and this is a nicely done open-source remake of it. I've played around a bunch with it. The only thing I found troublesome is those two PvE modes, versus the scavengers and the alien predator things - I just couldn't figure out how to beat them no matter how unfair I made it for "my" side. By the time the queen or boss scavenger unit showed up I was just continuously pounding it with volleys of nukes and an array of Buzzsaws (whatever they're called now) while sending endless waves of Krogoths and even that wasn't enough. What's the trick?