UFO 50 is a great little collection of 50 old-style computer games of standard genres (platformers, puzzle, adventure, survival horror), but modernized with a bit better mechanics and gameplay. It’s gotten quite popular and some of the games are really good.

I particularly like Night Manor. It has interesting mechanics like a flashlight that follows your cursor and a cursor that wiggles and jiggles in fear when the killer is on the screen. Neat!