this is a new action RPG in the minecraft universe and is only $20. It's has 4 player local co-op or online play.
My kids have been loving it, and it's sort of a family friendly Diablo style game. While I don't think it would hold my interest for single player, I would highly recommended if you game with your kids. It's much more fun for me than playing regular Minecraft or the Lego type games they usually play. There's no fighting over loot since it's specific to each character. Every weapon/armor can be enchanted with a simple process. You get 1 enchant point per level to use. If you salvage an item you get the enchant pts back.
I made a pretty OP bow combo that has gravity which pulls enemies together and exploding shot to do AOE dmg to them all.