The Wild Eight is a co-op survival game with a story, quests, and established characters. It’s pretty atypical for the genre, and it makes for an enticing idea stew when paired with a deathly cold setting (ala The Long Dark). The game is on Kickstarter and Steam Greenlight right now. It might also be a prequel to The Hateful Eight, but I doubt it. That would imply that everyone survives.