Snapshot Summary
- Defeating the Underking Boss unlocks an Arcana trainer NPC.
- Completing the NPC quest unlocks a second Arcana slot.
- You will receive a second Arcana during your subsequent runs.
- Once unlocked on any character, it stays unlocked for all characters.
Absolum is a roguelite beat-’em-up that constantly encourages experimentation with character builds and magical abilities. One significant upgrade that can dramatically alter combat strategy is the ability to equip a second Arcana, which has a wider array of spells and better tactics.
How to Unlock the Second Arcana Slot

To unlock the second Arcana slot in Absolum, complete the first island’s narrative and defeat the Undying King boss. Following this significant victory, you will find yourself on a ship, where an Arcana trainer NPC will eventually present you with a quest.
Completing this quest is the final step toward unlocking the coveted second slot. So you just have to:
- Complete the entirety of the first island’s quests.
- Defeat the “Undying King” boss.
- On the ship, after the boss, accept and complete the quest given by the Arcana trainer NPC.
How to Equip and Use Your Second Arcana
You won’t immediately equip the Second Arcana from a menu. Each time you defeat the Underking after unlocking the slot, you will receive a random Arcana to fill that secondary space for the duration of that run, along with an extra mana chunk.
The Second Arcana slot is another tweak that the game provides to sharpen your build when playing solo or multiplayer. It is a great way to increase survivability, especially when going for the complicated and perilous path to the true ending in Absolum.
FAQs
Is the Second Arcana Slot a Permanent Unlock?
Yes. However, the specific Arcana that fills that slot is not a permanent choice. The specific Arcana, though, varies every run.
What Is “Arcana Mastery” and How Does It Relate to the Second Slot?
Arcana Mastery is a separate system that provides an upgrade to all Arcana moves and unlocks per character once you complete their personal quest. It significantly enhances the effectiveness of any Arcana, including those equipped in your second slot.
Does the Second Arcana Slot Unlock for All Characters Simultaneously?
Yes, once you unlock the second Arcana slot through the Arcana trainer NPC’s quest, this becomes available for all characters on your account.
Can I Get Multiple Second Arcana Drops in One Run?
No, you can only equip a total of two Arcana through this method per run.
