Dead Space - I don't deal well with jump scares. First few minutes had me alt-f4-nope out of there! TES: Oblivion / Fallout New Vegas / Fallout 4 - I got bored with the gameplay/story in general. Loved Skyrim funnily enough. Star Wars: Dark Forces / Dark Forces 2 / Mysteries of the Sith - I picked these up on sale a decade after originally getting Jedi Knight and Jedi Academy. Couldn't deal with how clunky they felt by comparison. Dishonored - Liked the game, but found trying to keep up a non-lethal playthrough tedious. Felt that Deus Ex: HR was more entertaining on that front. There's a lot more unfinished games, but I'm not willing to say I've given up on them yet!