Reach player level 15 to unlock 25 new features in Castle Defense.
Guild-vs-guild timed war. Contribute damage for war rewards.
Where: Social ▸ Alliance War
Each unit gains a unique special ability at level 10. Unlock it with Essence to activate it in battle.
Where: Heroes ▸ Units
Your units evolve unique traits every 30 kills — choose from 3 random mutations. Force-pick for 15💎. Up to 3 mutations per unit!
Where: Build ▸ Mutations
Specific unit pairs placed adjacently activate Synergy Chains — powerful combo bonuses like healing on kill, chain lightning, or AoE amplification. Discover all 6 chains!
Where: Build ▸ Chains
Each unit type now has a unique passive ability that auto-fires under specific conditions — like Berserker's Blood Frenzy at <50% HP or Paladin's Holy Presence when a boss is on the field!
Where: Build ▸ Unit Passives
Certain unit pairs create Resonance effects when adjacent on the battlefield! Paladin + Cleric = Holy Radiance (heal allies), Mage + Frostmage = Blizzard Chain, and 4 more! Explore the combos!
Where: Build ▸ Resonance Pairs
Your units are learning from experience! After killing an enemy type 20+ times with a specific unit, that unit deals +10% more damage to it. Hits 50 kills for +20%, and 100 kills for +30% — a hunter's bond!
Where: Build ▸ Unit Memory
Stealthy commanders now hide in ambush waves, debuffing your units with battle orders! Your Ranger and Warden can detect them early — spot a commander before it acts for +40G bonus!
Where: Fight ▸ Ambush Commanders
Spectral Archers bypass the road and attack from BEHIND your lines — they ignore terrain entirely! Your Guardian unit physically intercepts them and blocks their shots. Kill a Spectral Archer while your Guardian is actively blocking for +18G bonus gold. Always keep a Guardian at the rear!
Where: Fight ▸ Spectral Archers
Your Cannon and Siege units now fire chain lightning every 8 shots — the bolt chains to 3 nearby enemies at 60% power each! Chain kills earn +11G per bounce hit. Position Cannons where 3+ enemies cluster to guarantee triple chains on every proc!
Where: Build ▸ Thunder Cannon
Druids and Nature Mages periodically bloom with restorative energy — every 14 seconds they emit a healing pulse that restores 15% HP to nearby allies! The bloom wave also weakens any enemies it passes through, reducing their attack speed. Enemies killed while weakened earn +8G bonus gold. Keep your healers protected!
Where: Build ▸ Nature Bloom
Ice Archers and Frost Knights charge and release a piercing frost lance every 12 seconds — a single ice-forged projectile that passes through up to 5 enemies in a straight line! Each enemy it pierces takes full damage and gets slowed. Position these units at road chokepoints for maximum pierce hits. Each pierced kill earns +11G bonus gold!
Where: Build ▸ Frost Lance
Wind Mages and Storm Archers unleash a powerful gale every 15 seconds — pushing all enemies back 3 tiles along the path! This resets their progress, giving your towers extra time to deal damage. Enemies pushed off ledge sections take bonus fall damage. Each pushback kill earns +9G bonus gold. Perfect counters to fast-moving enemies!
Where: Build ▸ Gale Force
Grove Wardens and Forest Sentinels are healers as well as fighters — every 17 seconds they plant a nature ward that pulses green energy, regenerating 8% of max HP on all ally towers within range! This passive sustain keeps your towers alive through heavy enemy waves without any player action needed. Each enemy killed near a ward earns +10G nature bonus.
Where: Build ▸ Nature Ward
Tempest Archers and Gale Snipers charge a concentrated spear of compressed wind every 10 seconds — then release it in a perfectly straight line that PIERCES through every single enemy in its path! Unlike area attacks, the wind lance deals full damage to each enemy individually. On a packed road this can hit 8+ enemies in one shot. Line up your towers to maximize lane coverage. Each lance kill earns +13G wind bonus!
Where: Build ▸ Wind Lance
Clerics and Holy Priests are your defensive backbone — every 20 seconds they invoke the heavens and call down a gentle healing rain over a 3-tile radius that restores 15% HP to every friendly tower it touches! Towers that would otherwise die from sustained boss damage survive much longer under healing rain cover. Layer multiple healers on your most contested path segments for near-perpetual healing coverage. During boss fights this can be the difference between surviving and having gaps. +10G per kill!
Where: Build ▸ Healing Rain
Chemists and Acid Engineers carry volatile acid tanks — every 12 seconds they fire a pressurized spray that coats all enemies in a 2-tile radius with corrosive acid! The acid eats through armor, reducing enemy defenses by 40% for 3 full seconds! During the armor-down window your physical damage towers deal significantly more damage to the corroded targets. Stack acid spray units to keep enemies perpetually armor-debuffed. Each acid kill earns +13G corrosion bonus. Essential against armored enemies!
Where: Build ▸ Acid Spray
Arcane Novas and Star Sages tap into stellar energy — every 11 seconds they unleash a nova burst that erupts outward in a 3-tile radius, hitting EVERY enemy caught in the blast simultaneously! Unlike directional attacks, nova bursts are omnidirectional — enemies on the sides, behind, and in front are all struck equally. This makes Nova Burst exceptionally powerful against wide enemy formations. Each nova kill earns +13G stellar bonus. The short 11-second cooldown means near-constant coverage — build multiple Star Sages for overlapping nova fields!
Where: Build ▸ Nova Burst
Pyromancers and Inferno Keepers channel magma energy from deep within the earth — every 15 seconds they cause a massive inferno pillar to erupt from the ground below the path! The pillar blasts through a 2-tile wide column of flame, incinerating everything in that vertical slice at once. Enemies tightly packed into the column take the full impact. Unlike wide-radius AoE, pillars concentrate damage into a narrow devastating strip — perfect for straight path sections where enemies queue up. Each pillar kill earns +17G conflagration bonus. Position Pyromancers near long straight stretches for maximum column hits!
Where: Build ▸ Inferno Pillar
Luminary units and Flash Mages can focus arcane energy into an overwhelming burst of radiant light — every 14 seconds they detonate a blinding flash that temporarily overloads the visual sensors of every enemy on the battlefield! All blinded enemies miss their next 3 attacks entirely, wasting offensive turns that would otherwise damage your castle or interrupt your towers. During the blinded window, blinded enemies take 25% extra damage from all sources. Each kill during the blind window earns +16G radiant bonus. Blinding Flash paired with heavy AoE towers during the miss window is absolutely devastating — the enemies literally cannot fight back!
Where: Build ▸ Blinding Flash
Rangers and Wind Mages fire a horizontal wind slash every 10 seconds hitting ALL enemies in a 4-tile wide zone simultaneously! Perfect for wide waves and formation enemies. Each slash kill earns +13G wind bonus.
Where: Build ▸ Wind Slash
Rival Castle · Hero Rivalry · Hero Prestige · Alliance War Status