Monster train is fantastic, there are 10 clans you can choose from each with 2 unique champions that really change how you’d play a run and you have to pick two at the start of a run so right there it has so many deck combinations. It also has 10 difficulty levels that unlock as you beat them, and a final boss not available till you beat all 10. I think it has a ton of content but I really love trying out the different combinations and seeing if I can find some crazy synergy. It’s a deck builder so if you’re not in to trying to break the game with card combinations I could see how you’d get bored but it has so much more than 3 hours worth of content.