I think it is a completely valid worry that corporations will come in, capture an audience, and then force the original lemmy instances into ruin. There is also the fact that corporations will want to make money off of it, and financial motivations are antithetical to the fediverse ecosystem.
If you’ve ever played a 4x game before, it’s not too hard to pick up. Stellaris is a fantastic game, and I’ve sunk quite a few hours into it.
With that said, sometimes they drop the ball on DLCs, and the late game gets bogged down/boring, so it’s worth waiting for player reviews to come back before getting it.