PS4:
Metal Gear Solid V: The Phantom Pain - took me about 42h and I appreciated every one of them. It's easily GOTY for me, but it's not the best Metal Gear I've played. I miss 40-minutes long cut-scenes...
Teslagrad - pretty good, classic platformer which I played mostly because of easy platinum trophy.
Ether One - it's technically the worst game I've played on PS4. Glitches, game-breaking bugs, slowdowns. I was regretting that I even started this despite easy plat which I have earned.
PS3:
Castlevania: Lords of Shadow - one of the greatest action-adventure games on last generation. I loved creation of the world, the story, combat system and music. On the other side, this game on PS3 doesn't run very good, there are some noticeable slowdowns. But the game itself is just excellent. I still have one DLC to finish - Chapter XIV Resurrection.
PC:
Inversion - mediocre shooter. For the first 2 hours I was positively surprised, but then the game became repetitive and I had to force myself to finish this.
Castle of Illusion Starring Mickey Mouse - it has really beautiful graphics and presentation, but it's really short (3h) and very easy. All in all, I enjoyed it, but this could be much better if there would be more content in this game.
The Stanley Parable - it's more an experience than a game. Player can finish this in a few minutes, but there are 19 (!) endings. Definitely worth playing.