Mechwarrior 5, mostly. Bought it with mild expectations, which the game has exceeded. Was worried it was too simplified (less detailed outfitting and heat management mechanisms, for example) relative to earlier titles, but it's got plenty of tactical and strategic depth...and more of the latter than any prior incarnation. Story also wasn't as bad as I had been lead to believe (the setup is a bit sloppy and it certainly doesn't break any new ground, but it's interesting enough to pursue without being railroady) and lance AI was more manageable than I feared.
My main complaints are AI--which, while better than prior games in the series is still not good--and performance. Particle density is too high in some areas, LODs are a bit janky, and the TAA is excessive, so there are huge swings in frame rate, especially around smoke, or when zooming. Quality can be reduced, of course, but the general presets are bad and burn performance where it shouldn't need to. I'll probably fix that eventually once I get a better handle on the UE4 options and can write up my own config files...still annoying though. Ray tracing is also useless and I have a feeling the game has such heavy TAA to deliberately make DLSS look better than it otherwise would (it's blurry mess either way, so you may as well use DLSS if you can). A more minor complaint are the animation and sense of scale; some of them a bit too jerky, especially after applying movement upgrades to a mech, and this makes it hard to believe that one is in a 15m tall monstrosity.
I completed the main campaign the other day, but haven't tried the career mode or co-op play, yet.