Recommend me PC Multiplayer games

Our group is looking for something new after playing a bunch of Wildermyth, with the following requirements:

Supports up to 5 players
Doesn't require fast reflexes
Cross platform (PC and Mac)

Nice to haves, but not dealbreakers:
On Steam
Lets us do funny voices
Not $60

A couple suggestions bandied about have been Baldur's Gate 2 and Gloomhaven.

Whoops, "up to" should be "at least."