Rat King build guide
by oses/````````````````````Version 34Updated Oct 13, 2026Guide #841603
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metabreak
1/build
Author's category · 11 items · L-R
Close Quarters
Monster Rounds
Sprint Boots
High-Velocity Rounds
Extra Health
Cultist Sacrifice
Built from Monster Rounds
Extended Magazine
Rapid Rounds
Swift Striker
Built from Rapid Rounds
Fleetfoot
Enduring Speed
Built from Sprint Boots
2sell prio: mr-closeq-velocity
Author's category · 11 items
Fortitude
Built from Extra Health
Recharging Rush
Escalating Resilience
Built from Extended Magazine
3optional
Author's category · 11 items
Crippling Headshot
Silencer
Armor Piercer
Built from High-Velocity Rounds
Categories appear in the author's order. Only the editor's default Early, Mid and Late sections are marked as game stages; the author's own categories keep their names. “Built from” links come from the game's item recipes.
Scrap GrenadeScrap Grenade | Scrap Grenade: Ability unlocked, step 1 | Scrap Grenade: 1 AP upgrade, step 2 | Scrap Grenade: 2 AP upgrade, step 6 |
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Berserker
Ballistic Enchantment
Siphon Bullets
Superior Cooldown
Juggernaut
Built from Enduring Speed
Witchmail
Transcendent Cooldown
Built from Superior Cooldown
Frenzy
Spiritual Overflow
Mercurial Magnum
Inhibitor
Plated Armor
Colossus
Built from Extra Health
Counterspell
Dispel Magic
Spirit Resilience
| Scrap Grenade: 5 AP upgrade, step 16 |
Rat SwarmRat Swarm | Rat Swarm: Ability unlocked, step 3 | Rat Swarm: 1 AP upgrade, step 9 | Rat Swarm: 2 AP upgrade, step 10 | Rat Swarm: 5 AP upgrade, step 11 |
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Royal PestmentsRoyal Pestments | Royal Pestments: Ability unlocked, step 4 | Royal Pestments: 1 AP upgrade, step 7 | Royal Pestments: 2 AP upgrade, step 8 | Royal Pestments: 5 AP upgrade, step 15 |
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Rule, Ratannia!Rule, Ratannia! | Rule, Ratannia!: Ability unlocked, step 5 | Rule, Ratannia!: 1 AP upgrade, step 12 | Rule, Ratannia!: 2 AP upgrade, step 13 | Rule, Ratannia!: 5 AP upgrade, step 14 |
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Unlock1 / 2 / 5 AP upgrade costOrder only; no timings
Current patch: the Oct 14, 2026 update, Oct 14, 2026, 00:00 UTC (approximate: no published release time) to today · ranked and unranked · all match average ranks
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