"Quest Mode" allows up to two players to fight NPC's instead of one another. Basically, this is a standard "horde mode" featured in many modern games. There is friendly fire that can pose a bit of difficulty if players don't communicate well. Different strategies involving ammunition and loot sharing make the game much deeper than you'd expect.
The "Dark World" expansion introduces the all-new Dark World Mode - a co-op campaign for 1-4 players. Battle your way to hideous boss monsters, and face the brutal challenge of the added Legendary difficulty mode. Expand your roster of playable fighters with the undead pirate Vainglorious Ghoul and 9 more alternate archers.
TowerFall is an archery, combat arena game focus mainly on mutliplayer deathmatch. Players must defeat each other with arrows and other power-ups, usually by getting in one direct hit. Participants can review each game's end moments with a gameplay rewind feature.More Info @ PCGamingWiki