The fact that a game has a shocking ending is a spoiler in and of itself. Better off looking for games that just have good stories. Portal and Portal 2 are pretty good in terms of engrossing stories. The Stanley Pararable. Antichamber (PLAY THIS GAME!!! even though it doesn’t have a story). Dishonored. Dishonored 2. I liked Watch Dogs, but the story isn’t all that great or anything. Also liked The Witness but it doesn’t really have much of a story, just cool puzzles and a pretty world.