Tower rules

Each boss floor is held by that zone's lord.

• Frontier RuinsFloors 1~10Grakka, Lord of Ruins
• Bamboo MurimFloors 11~20Mak Ri-hyeol, Blood Sword Master
• Steel EmpireFloors 21~30Kaiser von Granz, the Steel Duke
• Crumbling AbyssFloors 31~40Nebrion, Lord of the Abyss
• Dragon’s NestFloors 41~50Vargast the Ancient Dragon

• GoldAverage 50 + floor × 18, ±10%. Boss floors ×3.
• Experience40 + floor × 9. Boss floors ×2.

Gear drop rates

Power comes from the floor's budget. Regular enemies use budget × 0.85~1.15.

• HP(30 + power × 3) × class HP multiplier. Bosses ×1.45.
• Attack6 + power × 0.82
• DefensePower × 0.32 × class defense multiplier
• Speed12 + power × 0.16
• Dodge and critDodge is power × 0.1, at most 25. Crit is 5 + power × 0.08, adding at most 20.
• CountThrough floor 50: 2 + floor ÷ 5 + 0~1, at most 5. Above that, 5. Boss floors: 3~4 plus the boss.

• Floors 1~5018 + floor × 2.6
• From floor 51+0.9 per floor.
• From floor 125Slope ×1.6.
• From floor 400Slope ×2.
• Boss power×1.55 through floor 50, ×1.35 through 100, ×1.55 above.
• Lords from floor 401Class multipliers are capped at HP 1.1 and defense 1.
• The Architect, floor 999HP, attack and defense ×2.5.
• GenerationsOne every 100 floors. Variant and boss-form counts are generation − 1, at most 3.

Variants and boss forms

Risks and fitting counters through floor 50. From floor 51 they come from that floor's mutations.

• Floors 1~3Swarm · Front ChipFitting counters: Area Control · Guard
• Floors 4~6Front Burst · AttritionFitting counters: Guard · Sustain
• Floors 7~9Enemy Backline · Ranged FocusFitting counters: Backline Hit · Frontline Cover
• Floor 10Boss Guard · Armor · AttritionFitting counters: Anti-Armor · Mixed Firepower · Sustain
• Floors 11~14Assassin · High EvasionFitting counters: Speed Control · Guard
• Floors 15~19Poison · Caster Line · Enemy BacklineFitting counters: Sustain · Backline Hit · Speed Control
• Floor 20High Evasion · Burst WindowFitting counters: Speed Control · Sustain · Balanced Tactics
• Floors 21~24Armor · FormationFitting counters: Anti-Armor · Mixed Firepower
• Floors 25~29Ranged Focus · Caster LineFitting counters: Backline Hit · Frontline Cover
• Floor 30Boss Guard · Armor · AttritionFitting counters: Anti-Armor · Mixed Firepower · Sustain
• Floors 31~39Summon · Fatigue · High EvasionFitting counters: Area Control · Sustain · Speed Control
• Floor 40Summon · Boss Guard · Burst WindowFitting counters: Area Control · Anti-Armor · Sustain
• Floors 41~49Attrition · Ranged Focus · FatigueFitting counters: Sustain · Frontline Cover · Speed Control
• Floor 50Boss Guard · Armor · Ranged FocusFitting counters: Anti-Armor · Mixed Firepower · Frontline Cover

Floors 51~100 swallow the old zones in turn.

• Shards2 + floor ÷ 10 (rounded down) per floor, boss floors ×5.
• Forced mutations1 through floor 70, 2 above. +1 on boss floors, 3 from floor 101.
• Abyss contractAdd up to 2 mutations. One gives shards ×1.5, two ×2.2, up to 4 on the floor in total.
• Pin a mutation25 shards replace the last forced mutation with your pick.

• Devoured RuinsFloors 51~60
• Devoured Bamboo SeaFloors 61~70
• Devoured EmpireFloors 71~80
• Devoured RoostFloors 81~90
• Heart of the AbyssFloors 91~100

Abyss guide

Above floor 100, each chapter has its own lord.

• Floor 150Mortum, Funeral Bellkeeper
• Floor 200Jeok Mujin, Blood-Oath Executor
• Floor 250Orden, Ledger Auditor
• Floor 300Velsar, Seam Gatekeeper
• Floor 350Marques, Passage Tax Collector
• Floor 400Serein, the Erasing Surveyor
• Floor 450Urga, Worldroot Devourer
• Floor 500Karden, the Homebound Lord
• Floor 550Wreck Salvager Rohen
• Floor 600Resonance Sentinel Echorn
• Floor 650Folded Pathfinder Astra
• Floor 700Oath Guard Captain Yun Seoha
• Floor 750Ceiling Devourer Orvos
• Floor 800Canopy Warden Lumern
• Floor 850Unfinished Heir Eidos
• Floor 900Boundary Witness Serka
• Floor 950Arken, Anchor of Return
• Floor 999Ireon, Architect of the Tower

• ScoutingEach scout post level reveals 25% of the enemies.
• Healer at campA healer in the party heals more at camp: Standard +10%, Hard +6%, Expert +5%.
• Expert enemy attackMultiplied by floor on normal climbs only.

• By floorFloor 300 ×1.18 · Floor 600 ×1.3 · Floor 999 ×1.4

Floors and difficulty guide

• WhenOnce, after first beating a chapter boss on a normal climb.
• ChoicesUp to 4 scenes picked from that battle.
• PhotosUp to 5 people each. The latest 24 are kept.
• TrustPairs in a photo gain +1 trust.