Survive 30 waves of alien bugs by building a maze and placing towers. That's it. Here's the loop:
01
Build Maze
Place walls to create a winding path. Longer path = more time to shoot.
02
Place Towers
Set towers along your maze. Each type has strengths against specific enemies.
03
Send Wave
Press Space to start. Watch enemies follow your maze. Kill them all.
04
Upgrade & Repeat
Spend earnings on upgrades, new towers, and fusions. Research tech. Repeat.
$
Credits
Buy and upgrade towers. Earned from kills.
W
Wall Credits
Build walls. Earned separately each wave.
R
Research Points
Unlock tech tree upgrades. Earned from kills.
Quick Tips
Build your maze first — a long, winding path is your best weapon
Cryo Towers are MVP — they slow enemies AND boost adjacent tower damage
Fuse towers for endgame power — place a tower ON TOP of a compatible tower, or select a tower and pick a fusion from the info panel
Check the wave preview — it shows what's coming so you can counter-build
Bank credits for interest — unspent credits earn 5% per wave (up to 200)
Match damage types to weaknesses — 1.5x damage against weak enemies
Controls
Building
Place Wall1
Place Blaster2
Place Railgun3
Place Tesla4
Place Missile5
Place Cryo6
Place Drone Bay7
Place Flak8
Place Beam9
Actions
Send WaveSpace
Upgrade SelectedU
Sell SelectedS
Hero AbilityQ
Tech TreeT
DeselectEsc
Camera
PanWAD / Arrows
Zoom In/Out+-
Fit to Grid0
PauseP
Touch / Mobile
PanTwo-finger drag
ZoomPinch
Place / SelectTap
ActionsBottom buttons
Difficulty Settings
Easy
Medium
Hard
Insane
Starting Credits
600
450
380
320
Starting Lives
30
20
15
10
Enemy HP Multiplier
0.7x
1.0x
1.6x
2.4x
Enemy Speed
0.9x
1.0x
1.1x
1.2x
Enemy Armor
0.5x
1.0x
1.6x
2.2x
Kill Rewards
100%
92%
65%
45%
Elite Chance
3%
10%
20%
30%
The Story
The Signal
Deep in uncharted space, humanity's frontier stations detect an alien signal — a vast biological intelligence directing swarms of weaponized creatures. You are a Commander at the last outpost, first line of defense against extinction.
Characters
Commander Ratchet
Grizzled veteran running the defense. Dry humor, zero patience for bureaucracy. Your commanding officer and narrator.
S.A.R.A.
Station AI with a personality upgrade she didn't ask for. Tactical analysis with unsolicited commentary. Thinks she's funnier than she is.
Zix
Alien arms dealer who materializes whenever there's profit to be made. Introduced fusion technology to human forces. Suspiciously well-informed.
General Kron
Former human commander who merged with the hive mind. Now directs the swarm with human tactical knowledge. The campaign's primary antagonist.
High Command (Brass)
Distant authority figures who provide missions and occasionally useful intel. Mostly just send you into worse situations.
The Hive Mind
Collective alien consciousness behind The Signal. Speaks in fragmented transmissions. Ancient, patient, and very, very angry you keep winning.
Campaign: The Signal War
12 missions across 4 acts. Fully voiced with character dialogue, mid-mission events, and branching narrative beats. Comedy sci-fi in the vein of Starship Troopers meets Red vs Blue.
Act 1: First Encounters
Mysterious biological signals detected at the frontier. First contact reveals the swarm is being directed by an intelligence. Zix arrives with fusion technology just in time. Ends with General Kron's chilling broadcast.
Act 2: Escalation
The swarm adapts. New enemy types emerge — Titans, Matryoshka nesting units, teleporters. Multi-front battles test your maze-building skills. The stakes multiply as Kron reveals his true nature.
Act 3: The Hunt
Go on the offensive. Track Kron's signal relays through crater wasteland and island fortresses. Aura Commanders buff entire swarm waves. The final assault on Kron's stronghold.
Act 4: Endgame
Lost in void terrain, ambushed in mountain ridges, and finally facing The Source itself. 20-wave final mission. The Hive speaks: "W E . A R E . T H E . S I G N A L." Can you silence it forever?
Towers
9 buildable structures: 1 wall type and 8 combat towers. Each can be upgraded to Tier 3. Toggle "Show Stats" in the header for full numbers.
Damage Types
PhysicalEnergyExplosivePlasma
— Hitting a weakness deals 1.5x. Hitting a resistance deals 0.6x.
Wall1
Maze block. Forces enemies to walk a longer path through your kill zones. The backbone of every defense.
Cost:5 WC· Upgrades: +15 / +30 WC
Tier
Cost
Effect
T1
5 WC
Low wall
T2
+15 WC
Mid wall
T3
+30 WC
Tall wall
Blaster2Physical
Rapid-fire turret. Fast, cheap, high DPS. Can mount on walls. Your bread-and-butter.
DPS:64 → 144 → 350· Total cost: 330
Tier
Cost
Dmg
Range
Cooldown
DPS
T1
100
14
3.5
0.22s
64
T2
+90
23
4.0
0.16s
144
T3
+140
35
4.5
0.10s
350
Railgun3Physical
Long-range piercing sniper. Shots punch through multiple enemies. Best at long straightaways.
Sustained beam that ramps damage on the same target. Starts weak, builds to devastating DPS. Ideal for bosses.
DPS:160 → 240 → 360· Ramps to 3-4x on same target · Total: 640
Tier
Cost
Base Dmg
Range
Cooldown
Max Ramp
Base DPS
T1
200
8
5.0
0.05s
3x
160
T2
+180
12
5.5
0.05s
3.5x
240
T3
+260
18
6.0
0.05s
4x
360
Tower Fusions
Place a tower ON TOP of a compatible tower to fuse them into a powerful hybrid, or select a tower and pick from available fusion options in the info panel. Every pair of 8 combat towers can fuse (28 combos), plus 8 ultimate Stage 3 fusions.
AoE freeze/stun field. Shuts down entire corridors.
DPS:33 → 55 → 80· stun AoE
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
4
4
0.12s
Stun 0.5s AoE
33
T2
+220
6
4.5
0.11s
Stun 0.6s AoE
55
T3
+380
8
5
0.10s
Stun 0.8s AoE
80
Gatling PodExplosive
Blaster+Missile
3-round burst with small AoE splash.
DPS:67 → 128 → 240· burst + splash
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
20
4.5
0.3s
3-burst + splash
67
T2
+200
32
5
0.25s
3-burst + splash
128
T3
+350
48
5.5
0.2s
4-burst + splash
240
Death RayEnergy
Beam+Railgun
Penetrating beam that ramps to 4x damage. Boss shredder.
DPS:167 → 273 → 440· ramps 3-4x, pierces
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
10
7
0.06s
Ramps 3x, pierces
167
T2
+280
15
7.5
0.055s
Ramps 3.5x, pierces
273
T3
+450
22
8
0.05s
Ramps 4x, pierces
440
ThermobaricExplosive
Railgun+Missile
Long-range massive splash. Nuke it from orbit.
DPS:31 → 57 → 100· 2.0-3.0 splash
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
55
7
1.8s
2.0 splash
31
T2
+280
85
7.5
1.5s
2.5 splash
57
T3
+450
120
8
1.2s
3.0 splash
100
Flak StormExplosive
Flak+Tesla
AoE blast + chain lightning.
DPS:42 → 76 → 138· AoE + chains
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
25
4.5
0.6s
AoE + 2 chains
42
T2
+240
38
5
0.5s
AoE + 3 chains
76
T3
+400
55
5.5
0.4s
AoE + 4 chains
138
Cryo LancePlasma
Railgun+Cryo
Piercing shot that leaves a slow zone.
DPS:50 → 88 → 150· pierce + slow
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
50
6.5
1.0s
Pierce + slow
50
T2
+250
75
7
0.85s
Pierce + slow
88
T3
+400
105
7.5
0.7s
Pierce + slow
150
Slug ThrowerPhysical
Blaster+Railgun
Rapid piercing shots shred through lines.
DPS:122 → 250 → 520· pierce 2-4
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
22
5
0.18s
Pierce 2
122
T2
+220
35
5.5
0.14s
Pierce 3
250
T3
+380
52
6
0.10s
Pierce 4
520
Arc TurretEnergy
Blaster+Tesla
Rapid shots that chain to nearby enemies.
DPS:114 → 260 → 543· chain 3-5
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
16
4.5
0.14s
Chain 3
114
T2
+200
26
5
0.10s
Chain 4
260
T3
+350
38
5.5
0.07s
Chain 5
543
Gun DronePhysical
Blaster+Drone
Deploys rapid-fire combat drones.
DPS:70 → 138 → 267· 2-4 drones
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
14
5
0.20s
2 drones
70
T2
+220
22
5.5
0.16s
3 drones
138
T3
+380
32
6
0.12s
4 drones
267
ShredderExplosive
Blaster+Flak
Rapid-fire shrapnel bursts.
DPS:80 → 163 → 317· splash 1.0-1.5
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
16
4
0.20s
Splash 1.0
80
T2
+200
26
4.5
0.16s
Splash 1.2
163
T3
+350
38
5
0.12s
Splash 1.5
317
Pulse CannonEnergy
Blaster+Beam
Rapid energy pulses that build intensity.
DPS:240 → 360 → 520· ramps 3-4x
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
12
5
0.05s
Ramps 3x
240
T2
+220
18
5.5
0.05s
Ramps 3.5x
360
T3
+380
26
6
0.05s
Ramps 4x
520
Ion CannonEnergy
Railgun+Tesla
Devastating chain lightning blast.
DPS:39 → 73 → 133· 4-6 chains + splash
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
35
6
0.9s
4 chains + splash
39
T2
+260
55
6.5
0.75s
5 chains + splash
73
T3
+420
80
7
0.6s
6 chains + splash
133
Gauss FlakPhysical
Railgun+Flak
Long-range anti-air burst.
DPS:50 → 100 → 200· flak 2.0-3.0
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
35
6
0.7s
Flak 2.0
50
T2
+240
55
6.5
0.55s
Flak 2.5
100
T3
+400
80
7
0.4s
Flak 3.0
200
Shock SwarmEnergy
Tesla+Drone
Electric drones that arc between targets.
DPS:100 → 222 → 429· 2-4 drones
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
12
4.5
0.12s
2 drones
100
T2
+220
20
5
0.09s
3 drones
222
T3
+380
30
5.5
0.07s
4 drones
429
Plasma ArcEnergy
Tesla+Beam
Sustained arc beam that builds in power.
DPS:200 → 300 → 440· ramps 3.5-4.5x
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
10
5
0.05s
Ramps 3.5x
200
T2
+240
15
5.5
0.05s
Ramps 4x
300
T3
+400
22
6
0.05s
Ramps 4.5x
440
Cryo RocketPlasma
Missile+Cryo
Frost explosions that freeze on impact.
DPS:18 → 35 → 63· burst + splash
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
22
5
1.2s
Burst + splash
18
T2
+220
35
5.5
1.0s
Burst + splash
35
T3
+380
50
6
0.8s
Burst + splash
63
Seeker SwarmExplosive
Missile+Drone
Drone-guided homing missiles.
DPS:23 → 43 → 84· 2-4 drones
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
18
5
0.8s
2 drones
23
T2
+240
28
5.5
0.65s
3 drones
43
T3
+400
42
6
0.5s
4 drones
84
Cluster BombExplosive
Missile+Flak
Multi-detonation explosives.
DPS:20 → 40 → 72· 2.0-3.0 splash
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
28
5
1.4s
2.0 splash
20
T2
+240
44
5.5
1.1s
2.5 splash
40
T3
+400
65
6
0.9s
3.0 splash
72
Orbital StrikeExplosive
Missile+Beam
Beam detonates on contact. From orbit.
DPS:300 → 440 → 640· ramps 3-4x
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
15
6
0.05s
Ramps 3x
300
T2
+260
22
6.5
0.05s
Ramps 3.5x
440
T3
+420
32
7
0.05s
Ramps 4x
640
Frost DronePlasma
Cryo+Drone
Drones that create freeze zones.
DPS:24 → 50 → 100· 2-4 drones + freeze
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
6
4.5
0.25s
2 drones + freeze
24
T2
+200
10
5
0.20s
3 drones + freeze
50
T3
+350
15
5.5
0.15s
4 drones + freeze
100
HailstormPlasma
Cryo+Flak
AoE ice shrapnel storm.
DPS:26 → 51 → 105· AoE + chains
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
18
4.5
0.7s
AoE + chains
26
T2
+220
28
5
0.55s
AoE + chains
51
T3
+380
42
5.5
0.4s
AoE + chains
105
Freeze RayPlasma
Cryo+Beam
Freezing beam that immobilizes targets.
DPS:120 → 200 → 300· ramps 2.5-3.5x + freeze
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
6
5
0.05s
Ramps 2.5x + freeze
120
T2
+220
10
5.5
0.05s
Ramps 3x + freeze
200
T3
+380
15
6
0.05s
Ramps 3.5x + freeze
300
Bomber DroneExplosive
Drone+Flak
Drones that drop explosive payloads.
DPS:40 → 80 → 160· 2-4 drones + splash
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
20
5
0.5s
2 drones + splash
40
T2
+240
32
5.5
0.4s
3 drones + splash
80
T3
+400
48
6
0.3s
4 drones + splash
160
Laser DroneEnergy
Drone+Beam
Drones with sustained beam weapons.
DPS:200 → 320 → 480· ramps 2.5-3.5x drones
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
10
5.5
0.05s
Ramps 2.5x drones
200
T2
+240
16
6
0.05s
Ramps 3x drones
320
T3
+400
24
6.5
0.05s
Ramps 3.5x drones
480
Nova CannonEnergy
Flak+Beam
Beam that detonates in AoE burst.
DPS:280 → 440 → 680· ramps 3-4x + AoE
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
14
5.5
0.05s
Ramps 3x + AoE
280
T2
+260
22
6
0.05s
Ramps 3.5x + AoE
440
T3
+420
34
6.5
0.05s
Ramps 4x + AoE
680
Stage 3 Fusions — Ultimate Weapons
Fuse a 2-tower fusion with a third base tower for the most powerful towers in the game.
Stage 3Cryo StormPlasma
Frostfire+Tesla
Total crowd control: AoE freeze + chain lightning. Locks down entire waves.
DPS:257 → 467 → 700· stun + AoE
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
18
5.5
0.07s
Stun 1.2s, AoE 2.2
257
T2
+500
28
6
0.06s
Stun 1.5s, AoE 2.5
467
T3
+800
35
6.5
0.05s
Stun 1.5s, AoE 2.5
700
Stage 3Thunder GodEnergy
Storm Launcher+Blaster
Chain lightning + explosions + rapid fire. Pure offensive devastation.
DPS:157 → 286 → 545· chains + splash
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
55
5.5
0.35s
4 chains, 1.8 splash
157
T2
+550
80
6
0.28s
5 chains, 2.2 splash
286
T3
+900
120
6.5
0.22s
5 chains, 2.8 splash
545
Stage 3Tesla Death StarEnergy
Death Ray+Tesla
Penetrating beam + chains, ramps to 4.5x. The ultimate boss killer.
DPS:900 → 1556 → 2500· ramps + pierces
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
45
8.5
0.05s
Ramps 3.5x, pierces
900
T2
+600
70
9.5
0.045s
Ramps 4x, pierces
1556
T3
+1000
100
10.5
0.04s
Ramps 4.5x, pierces
2500
Stage 3Nuclear WinterPlasma
Permafrost+Missile
Freeze field + explosions. Total area denial.
DPS:286 → 500 → 800· stun + AoE
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
20
5
0.07s
Stun 1.0s, AoE 2.5
286
T2
+500
30
5.5
0.06s
Stun 1.2s, AoE 2.8
500
T3
+850
40
6
0.05s
Stun 1.5s, AoE 3.0
800
Stage 3Blizzard BarragePlasma
Gatling Pod+Cryo
Burst fire + AoE frost. Rapid ice devastation.
DPS:306 → 571 → 1000· burst + splash
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
55
5
0.18s
4-burst, 1.5 splash
306
T2
+500
80
5.5
0.14s
5-burst, 2.0 splash
571
T3
+850
110
6
0.11s
6-burst, 2.5 splash
1000
Stage 3Siege CannonExplosive
Thermobaric+Railgun
Long-range siege artillery. 320 damage at T3 with 4.8 splash radius. The ground remembers.
DPS:94 → 169 → 320· massive splash
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
150
9
1.6s
3.5 splash
94
T2
+650
220
10
1.3s
4.0 splash
169
T3
+1100
320
11
1.0s
4.8 splash
320
Stage 3Drone ArmadaEnergy
Sniper Drone+Tesla
Precision drones + chain lightning. Sky full of pain.
DPS:140 → 275 → 500· chains + splash
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
35
7
0.25s
5 chains, 1.3 splash
140
T2
+550
55
7.5
0.20s
6 chains, 1.6 splash
275
T3
+900
80
8
0.16s
7 chains, 2.0 splash
500
Stage 3Plasma StormEnergy
Flak Storm+Blaster
Lightning chains + rapid AoE blasts. Pure chaos.
DPS:200 → 375 → 722· splash + chains
Tier
Cost
Dmg
Range
Cooldown
Special
DPS
T1
—
60
6
0.30s
2.5 splash, 5 chains
200
T2
+600
90
6.5
0.24s
3.0 splash, 6 chains
375
T3
+950
130
7
0.18s
3.5 splash, 7 chains
722
Fusion Paths — From Base to Ultimate
Every Stage 3 fusion follows a clear progression: two base towers fuse into an L2, then that L2 combines with a third base tower to create the ultimate weapon.
Blaster+Cryo→Frostfire+Tesla→Cryo Storm
Tesla+Missile→Storm Launcher+Blaster→Thunder God
Beam+Railgun→Death Ray+Tesla→Tesla Death Star
Cryo+Tesla→Permafrost+Missile→Nuclear Winter
Blaster+Missile→Gatling Pod+Cryo→Blizzard Barrage
Railgun+Missile→Thermobaric+Railgun→Siege Cannon
Railgun+Drone→Sniper Drone+Tesla→Drone Armada
Flak+Tesla→Flak Storm+Blaster→Plasma Storm
Enemy Bestiary
19 enemy types, from basic scouts to massive siege titans. Each has a weakness you can exploit for 1.5x damage.
Scout Drone
Basic fodder. Fast but fragile.
HP25
Speed2.2
Armor0
Reward6
Weak toPlasma
Infantry Bot
Bread-and-butter enemy. Armored and steady.
HP55
Speed1.4
Armor1
Reward10
Weak toPhysical
Swarm Bug
Fast
Tiny but comes in huge numbers. AoE is essential.
HP12
Speed3.0
Armor0
Reward4
Weak toExplosive
Shield Unit
Regenerating 35 HP shield. Resists Plasma.
HP70
Speed1.2
Shield35
Reward15
Weak toPhysicalResistsPlasma
Heavy Mech
Tanky and heavily armored. Resists Physical.
HP220
Speed0.8
Armor5
Reward22
Weak toEnergyResistsPhysical
Sky Wasp
Flying
Flies over walls, ignoring your maze entirely. Need Flak Cannons.
HP55
Speed1.8
Reward15
Weak toPhysical
Juggernaut
Slow Immune
Immune to slow effects. Heavily armored. CC resistance aura.
HP300
Speed0.65
Armor8
Reward25
Weak toEnergyResistsPhysical
Mend Drone
Healer
Heals nearby enemies 8 HP/sec. Kill these first!
HP45
Speed1.0
Heal Rate8/s
Reward18
Weak toPlasma
Hive Pod
Splitter
Splits into 3 Mini Scouts on death. AoE handles the spawn.
HP80
Speed1.5
Splits3
Reward20
Weak toExplosive
Ghost Shade
Stealth
Partially invisible. Needs Detection Grid tech or Spectre hero to reveal.
HP35
Speed2.0
Reward16
Weak toPlasma
Phase Shifter
Teleporter
Teleports 4 tiles forward every 3 seconds. Skips sections of your maze.
HP60
Speed1.4
Reward18
Weak toExplosive
Hive Mother
Spawner
Spawns Mini Scouts every 5 seconds while alive.
HP100
Speed0.8
Armor2
Reward22
Weak toPhysical
Boss Titan
Boss
Massive HP, resists all damage types. Phased immunity. Appears every 5 waves.
Splits into 2 Shells on death, which split into 2 Cores each. 7 enemies total from 1.
HP400
Speed0.7
Armor4
Reward30
Weak toEnergy
Aura Commander
Speed Aura
Speeds up all enemies within 3 tiles. Priority target.
HP200
Speed0.9
Armor3
Reward35
Weak toPlasma
Heroes
Choose one hero per mission. They level up during combat, unlocking talents at levels 2, 4, 6, 8, and 10. Each talent tier offers two choices.
Sgt. Hammer
Frontline Tank · Melee · Physical
+
Tough melee brawler. Ground Slam stuns entire groups. Buffs adjacent towers with +3 armor and self-heals.
HP500
Armor8
Dmg23
Range2.5
Speed1.5
Ground Slam9s CD
90 splash damage in 2.5-tile radius, stuns enemies for 1.5 seconds.
Passive: Fortified
+3 armor to adjacent towers. Self-heals 8 HP/sec.
Talent Tree
Lv 2
Iron Fist +25% damage
Thick Skin +30% max HP
Lv 4
Shockwave Slam radius +1 tile
Juggernaut +4 armor
Lv 6
Battle Fury -25% fire cooldown
Titan Grip +40% damage
Lv 8
Fortress +50% max HP
Last Stand +8 armor, -15% speed
Lv 10
Earthquake Slam stuns 3s, +50% dmg
War Machine +30% all stats
Spectre
Recon Sniper · Ranged · Physical
+
Long-range marksman who reveals stealth enemies. Goes invisible when idle. Headshot ignores armor.
HP220
Armor3
Dmg35
Range5.0
Speed2.5
Headshot8s CD
Next shot deals 3x damage, ignores all armor.
Passive: Eagle Eye
Reveals stealth enemies in 4-tile radius. Auto-stealths after 2s idle.
Talent Tree
Lv 2
Long Reach +20% range
Quick Draw -20% fire cooldown
Lv 4
Piercing Rounds +35% damage
Ghost Walk +40% move speed
Lv 6
Sharpshooter +25% range, +15% dmg
Vital Strike Headshot deals 5x dmg
Lv 8
Shadow Cloak +3 armor, +20% speed
Assassinate -30% fire cooldown
Lv 10
Death Mark +50% dmg, +30% range
Phantom +60% speed, +25% dmg
Ember
AoE Caster · Ranged · Energy
+
Burns enemies in an area. Passive heat aura deals constant damage. Inferno creates devastating fire zones.
HP280
Armor4
Dmg14
Range3.0
Speed2.0
Inferno10s CD
Creates fire zone (3-tile radius) dealing 15 DPS for 5 seconds.
Passive: Heat Wave
Enemies in 2-tile radius take 4 DPS. Heat Shield: -30% incoming damage.
Talent Tree
Lv 2
Scorch +30% damage
Flame Shield +40% max HP
Lv 4
Wildfire +25% range
Rapid Burn -25% fire cooldown
Lv 6
Firestorm Inferno radius +1.5 tiles
Ignite +40% damage
Lv 8
Pyroclasm Inferno DPS +50%
Ember Armor +4 armor, +25% HP
Lv 10
Phoenix +50% dmg, -30% cooldown
Hellfire Inferno +2 radius, DPS +75%
Frostbite
Crowd Control · Ranged · Plasma
+
Slows all nearby enemies. Flash Freeze locks them in place. Enemies near Frostbite take 15% more damage.
HP350
Armor5
Dmg14
Range3.0
Speed1.8
Flash Freeze9s CD
Freezes all enemies in 3-tile radius for 2.5 seconds, deals 25 damage.
Passive: Chill Aura
Enemies in 2.5-tile radius slowed 30%, take +15% damage. Frost Armor slows attackers.
Talent Tree
Lv 2
Deep Chill +25% damage
Ice Armor +35% max HP
Lv 4
Frostbolt -25% fire cooldown
Permafrost +20% range
Lv 6
Glacial Burst Freeze radius +1 tile
Shatter Freeze deals +50% dmg
Lv 8
Blizzard +35% dmg, +20% range
Frozen Fortress +5 armor, +30% HP
Lv 10
Absolute Zero Freeze 4s, radius +2
Ice Age +50% all combat stats
Sparky
Chain Striker · Melee · Energy
+
Melee lightning brawler. Stuns on hit, dodges attacks, and Overload chains to 8 enemies.
HP320
Armor5
Dmg22
Range2.0
Speed2.0
Overload7s CD
Chain lightning hits 8 enemies for 30 damage each.
Passive: Static Field
12% stun chance for 0.5s. Static Shield: 15% dodge chance.
Talent Tree
Lv 2
Voltage +30% damage
Insulation +35% max HP
Lv 4
Arc Reach +25% range
Overclock -25% fire cooldown
Lv 6
Chain Master Overload +4 chains
Thunderstrike +40% damage
Lv 8
Lightning Rod +4 armor, +20% range
Surge -30% fire cooldown
Lv 10
Tesla Coil +50% dmg, +30% range
Storm Lord Overload +6 chains, +50% dmg
Doc
Support Medic · No Attack
+
No direct attack. Heals nearby towers and boosts their damage with Overdrive. The force multiplier.
HP300
Armor5
Heal Range3.5
Speed2.0
Overdrive14s CD
All towers in 4-tile radius gain +30% damage for 5 seconds.
Passive: Field Medic
Towers in 3-tile radius repair 5 HP/sec. Self-heal doubled near towers.
Talent Tree
Lv 2
Triage +25% heal range
Thick Scrubs +40% max HP
Lv 4
Adrenaline Overdrive +20% buff
Field Medic+ +30% heal range
Lv 6
Revitalize Overdrive radius +1.5
Combat Medic +3 armor, +25% HP
Lv 8
Overdrive+ Buff +25%, duration +3s
Resilience +5 armor, +30% HP
Lv 10
Miracle Overdrive +40% buff, +2 radius
Guardian Angel +50% HP, +6 armor
Tech Tree
Press T to open. Spend Research Points (RP) earned from kills to unlock permanent upgrades across 6 branches. Each branch has a powerful capstone.
Priority Picks
Early: Detection Grid (20 RP) for stealth, Salvage Tech (18 RP) for economy Mid: Kill Bounty + Supply Lines for income snowball, Extended Barrels for range Late: Capstones! Singularity Engine (+25% fusion dmg) and Total Coverage (+12% dmg all) are game-winners.
World
Disasters
Starting from Wave 3, there's a 20% chance after each wave of a random disaster. Some help, some hurt, all are chaotic.
☄
Meteor Strike
Explosion damages enemies and towers, creates craters.
Can actually help clear enemies.
●
Black Hole
Creates void terrain, destroys nearby structures.
Rebuild around it.
⌬
Earthquake
Creates rubble, slows enemies, may damage walls.
The slow helps you.
☼
Solar Flare
Empowers energy towers 5s, then disables them 3s.
Time big plays during the buff.
☂
Acid Rain
Damages all towers over 6 seconds.
Keep towers healthy.
⚡
EMP Burst
Disables all towers for 3s, but also stuns enemies for 3s.
Neutral — affects both sides equally.
☁
Fog of War
Reduces tower ranges by 30% for 8 seconds.
Cryo slow keeps enemies in reduced range.
★
Supply Drop
Spawns a crate worth 50-150 credits.
Click/tap the crate before it expires!
Terrain
Terrain
Effect
High Ground
Towers deal +15% damage
Ruins
Towers cost 50% less
Mountain
Impassable, natural wall
River
Impassable, creates chokepoints
Crater
Passable terrain (created by meteors)
Void
Impassable (created by black holes)
Pit
Impassable dark chasm
Frontier
Edge of the map boundary
Wave Modifiers
Named waves can carry forced modifiers. Adapt your strategy when you see these.
Modifier
Effect
BERSERKER
Enemies deal more damage and move faster
FORTIFIED
Enemies gain extra armor and HP
SWIFT
Enemies move significantly faster
BOUNTY HUNT
All enemies are bounty targets (5x reward!)
FOG OF WAR
Tower ranges reduced 30%
OVERCLOCKED
All your towers fire faster (buff!)
Economy
Interest
Earn 5% interest on unspent credits each wave (cap: 200). Supply Lines tech boosts to 5.5%.