Dink Smallwood is an old fantasy role playing game. It has a small community that makes mods for it. It’s really dumb but it’s free to play and very short if you have nothing better to do.
edit: Wow! I didn’t realize a lot of people here know this game. That’s actually cool.
StarCraft. I never played Legacy of the Void campaign and I was told the ending was bad. Would be nice to have a StarCraft III though