Don't Starve Together

Klei's 2016 multiplayer version of Don't Starve keeps everything that made the original punishing and adds other people to make it worse in interesting ways. You are dropped into a procedurally generated wilderness with nothing, and the game explains none of its rules: what is edible, what happens at night, why your sanity is falling, and what the thing in the darkness does. Learning is done by dying, and a world is permanent, so a season-four base burning down in summer is simply what happened. Cooperation solves problems that are individually lethal - one player farms, one fights, one keeps the base from freezing - and the seasonal cycle forces long-term planning around winter, spring flooding and summer wildfires. Tim Burton-adjacent art and Wilson's paper-cutout animation give it a distinctive look that has not aged. Klei has supported it with free content for a decade, including boats, a second shard of the world underground, and character reworks. It remains one of the cleanest survival designs available, mostly because it refuses to help you.