Currently, Tallowmere is a singleplayer experience. You start in a dungeon with an axe, talk to some friendly NPCs (who assist you in various ways), then make your way into the unknown on a mission to see how far you can get. The first room has one main enemy, the second room has two main enemies, and so on; the game eases you in but quickly gets harder. A typical playthrough for me lasts anywhere from 2 minutes to 30 minutes.