Your castle is surrounded by a forest filled with Goblins, Orcs, and Trolls. Players must work together to slay monsters and protect the castle towers. If it stands, everyone wins. If it falls, everyone loses.
Although this is plenty difficult for beginners, experienced gamers might want to try the expansion versions.
If your group is regularly struggling to win this game, remove a couple of the more powerful monsters (Troll Mage, Orc Warlord).
Forbidden Island – Arrange tiles to form the island, then cooperate to save the island from sinking
Ghost Stories – Work together to protect the village from the lord of hell and its legions of ghosts