Set in post-apocalyptic 2026 when a devastating global tectonic disturbance (Earth Rage) destroys and changes much of the world, Southwestern Tokyo split off into the ocean and became an island covered in fog. A giant spire-like structure pierced through the center of the island creating the twisted battleground known as The Tower of Barbs. Daring players will explore and ascend this mysterious tower, all the while fighting off ghastly enemies and horrific bosses, aided by the Grim Reaper, Uncle Death.

Players start with little more than their undergarments and must forage for powerful weapons and armor to do battle with the over-the-top ultraviolent future that waits.

Let It Die also features deep, multilayered asynchronous multiplayer in the form of "death data," where other players' dead bodies will reanimate into a "Hater", a brutal AI opponent, who will roam other player's games and use every tactic and weapon on hand to stop players in their tracks. If they manage to eliminate a Hater, players are able to loot the Hater for rare items to aid in their ascent up The Tower of Barbs. Players will eventually meet Tetsuo, an unsettling robotic NPC, who gives players the chance to join a team and perform raids on enemy bases to steal much needed resources.

To celebrate Let It Die's 1 million download milestone, GungHo Online and Grasshopper Manufacture will be giving out one in-game Death Metal as daily log-in bonuses to players Jan. 6-8.

In order for players to receive their daily Death Metal, they must log-in daily to claim their bonuses from their in-game Reward Box.

Additionally, Let It Die also has an all-star lineup of voice actors, including Mark Hamill, who lends his voice as the game's narrator, as well as Billy Dee Williams (Star Wars), Verne Troyer (Austin Powers), Steve Blum (Star Wars Rebels) Mark Rolston (Aliens), Laraine Newman (Saturday Night Live) and Tracy Lords (Blade).