#14
Castle Crashers is twenty minutes from install to playing with four people, and that friction-free start is its best quality. Four players beat through levels together, level up their characters, and generally cause cheerful chaos without needing to explain anything to anyone. I have dropped this into a group of mixed-skill players and watched it work immediately. The reason it sits in the honorable mentions is that the teamwork never gets deeper than that. You pile into fights together rather than solving role-based challenges. For casual sessions and mixed groups it is excellent. For friends who want coordination to matter, the main list serves them better.