"Survivor" feels like a weird move. I wonder if game studios overestimate how many single player games a typical co-op enthusiast plays.
I play DRG to play with friends. The game is solid, absolutely. But "less 3d and no friends" wasn't on my wish list.
I do understand that a good co-op dungeon often has to start as a good single player dungeon.
I hope "Survivor" makes it to a sequel that includes multiplayer.