Like many here - too many. Some are on my hard drive more as a reminder to check for updates than active play. Have started playing games by the amount of space they take up on the drive. Leads to some "is this worth the space?" moments.
Rating is less of an issue than the comments. If there's a game I'm on the fence about and the first few comments are all negative I'll generally give it a pass.
Whatever the dev / author can get away with. While AI can look a little same-y hopefully it does mean that people with good ideas but no artistic ability can jump in and create their perfect game.
Sandboxes can be really hard for the funding model most of the games use. 0.1 feels like a completely empty world with like 1 or 2 things to do and no direction. And since it's pretty boring the dev gets no funding so peters out by 0.2.3 and we get another abandoned game.
Art is amazing, but as others have said the game is super grindy - even with cheats. At this point the author is better off just drawing a comic and skipping the dev work.
I don't mind re-finding a game after it's been awhile so i'm generally good with longer update cycles. If they're super frequent / changes are barely noticeable I'll probably take a few months off anyway and find something else in the interim.
Bad endings just sour my view of the entire game. Abandoned games just make me think back a year on and say "huh, guess they never finished that." Though I rarely even start games that have been "officially" abandoned
If you don't mind real porn HTML games, Adam and Gaia basically involves getting various women pregnant, then your daughters, grand-daughters, etc. pregnant enough so that you have enough spiritual energy (or something) to take on the final boss