i think it has coop but atm is buggy .
don't know about replayability like torchlight 2 but seems polished and fun for the price.
i'm waiting for Grim Dawn , but it's a very long wait sadly.
For anyone interested in H&S games like me i suggest some to play cause they are very rare these days.
-Divine Divinity
-Nox
-Torchlight 1/2
-Diablo 2
-Titan Quest
-Sacred with expansion Underworld
-PoE
-Din's Curse (underrated gem)