Spellbook Demonslayers

Spellbook Demonslayers is a fast-paced roguelite bullet heaven game set in the Cosmic Library, which is threatened by a demonic horde. You build a character with magic, charms, abilities and demon summoning, then fight to become the Library’s most powerful slayer.

Build your slayer

A wide range of upgrades, equipment and abilities lets you shape each run. You can take Illegal Upgrades from the Shady Smuggler, changing how your character works, and steal powers from enemies to stack buffs. You can also evolve and mutate your auras to unlock different effects.

Fight your way

Choose Autoaim, Manual Aim or Directional Aim to control how you attack. Customizable difficulty and rewards let you earn charms, demonic essence, equipment and other rewards.