Alright, no offense, but I think you need to expand your horizons, lol.
The last 5 games (all of which were post-acquisition) Nether Realm put out have all been multi-million sellers in a genre that struggles to do that, and their past 2 games are only second fiddle to Smash for number of copies sold. They're the only ones who figured out how to do single player content in a fighting game that interests people enough to buy those games for that content, and while Capcom and Bandai Namco both tried, I think you'll be hard pressed to find someone who thinks they did it better.
Red Dead Redemption 1 and 2 were both post-acquisition, and regardless of my feelings of RDR2 (which is still that it is not a bad game by any means), both games are critical and commercial smash hits.
Relic has had very successful Warhammer 40k and Company of Heroes releases over the past 20 years.
Naughty Dog has made far more games post-acquisition than pre-acquisition, and some of their best-selling, highest-rated games have been on the more recent end of things. Perhaps you've heard of Uncharted and The Last of Us?