Gloomhaven is a massive campaign game that demands dedication. You play mercenaries exploring dungeons and fighting monsters. The card-driven combat is highly tactical and leaves little to luck. You have to manage your hand carefully or you will drop out of the fight. The box is heavy and setup takes a significant amount of time. You need a regular group willing to commit for months. It slowly unfolds a sprawling story with lots of unlocked content. A huge investment, but it delivers a very deep dungeon crawl.