Free
Vanguard
Champion
Titan
Mother Zombie
Halloween
Zombie
The baseline infected.
Sniff: a 2s scent trail only you can see points toward the nearest survivor. (20s)
3 are free. 20 more can be earned by playing in the Lab, or a rank unlocks them straight away. Add the 3 Halloween classes and the Mother Zombie, and that's 27. Every one is shown here on its real in-game model.
Play a class to Level 10 and you can prestige it for a Skill Token. Tokens buy Infected Skills: 9 that any class can run, plus 3 for that class alone. How Mastery works.
What each one does, its cooldowns, and how to unlock it.
Free for every player, from your first round.
The baseline infected.
Sniff: a 2s scent trail only you can see points toward the nearest survivor. (20s)
Takes 20% less knockback.
Sand Grip: lunge, grab a survivor and YEET them ~10 blocks; anyone they crash into gets bowled over. A hit mid-grab breaks it. (20s)
Immune to Slowness (sticky nades included); never slowed by webs.
Snare Shot: a wide arrow that cocoons the first survivor it hits for 4.5s: 5 punches to cut free, shared with anyone helping. A miss arms a tripwire. (12s)
Unlocked for good by the Vanguard rank ($14.99), or earned one at a time for the season in the Lab.
Sharpness I bow, 10 arrows, +1 every 5s, 1.5s between shots.
Bone Snipe: a flat, sniper-fast bone bolt for 2❤, ~50 blocks, no drop. A miss still spends the cooldown. (20s)
Fast but weak, Speed I + Weakness I.
Rabid Frenzy: 3s of Speed III, Jump I and Strength I, but you glow and take +50% damage. Any melee hit ends it and leaves you on Weakness II for 2s. (20s)
Wooden sword and zombie armour. Arrows, shurikens and thrown grenades pass straight through you, like a real Enderman. Water is your weakness: a survivor's splash potion burns you for 2❤, and standing in water hurts.
Stare: for 4s you tremble, scream and rush in with Speed II. Any survivor who looks at you, at any part of you, is caught in your gaze: heavily slowed and unable to sprint for as long as they keep looking (3s at most). Only looking away breaks it, and a carved pumpkin on their head makes them immune. (15s)
Poison + slow on hit; never slowed by webs.
Dash: leap forward; dash within 2s of a hook to carry its momentum (20s)
Sky Hook: latch a block up to 15 blocks away and reel in; press it again while clinging to let go with a free dash. (30s)
2 bugs erupt from your corpse when you die.
Release the Brood: 4 biting bugs hunt the nearest survivors for 7s. One hit kills a bug; a frag wipes them all. (20s)
Unlocked for good by the Champion rank ($39.99), which includes Vanguard, or earned one at a time for the season in the Lab.
Wither on hit; bow with 5 arrows (+1 every 8s).
Soul Chains: yank the survivor in your crosshair (12 blocks, needs line of sight) to you, + Wither I for 3s. It refuses to pull anyone across a ledge. (20s)
Poison on hit; carries a Healing + Extreme Conditioning potion.
Lingering Hex: throw a flask that leaves a 4s poison + weakness cloud. Clouds refresh rather than stack, so spreading them beats piling them up. (14s)
Full iron armour; a poppy that hits like a wooden axe.
Iron Will: for 4s nothing knocks you back or slows you down, not even mid-jump. Wade in and keep walking. (13s)
Jump Boost that grows with each kill; Feather Falling boots. Splits on death, kill both babies in 4s or it reforms at one of them.
Slime Slam: hurled high, then driven down into an AoE crash; click again mid-air to slam early. You swell to maximum size for 5s afterwards, and a bigger slime is a bigger target. (15s)
Bomber kit; light armour.
Overload: Speed II for 3s to close the gap, then a 2s fuse and an AoE blast: infects survivors, half-damages nearby infected, breaks no blocks, and kills you too. (20s)
Permanent Jump Boost.
Gale Leap: ride a gust in a big arc to where you aim; the landing gust shoves survivors back. Weakness I on launch, so it is an ENTRY, not an assassination. No fall damage from the leap itself, ordinary drops still hurt. (20s)
Speed I while a survivor is within 8 blocks; never slowed by webs.
Latch: pounce where you aim, up to ~4 blocks straight UP, and ride a survivor's back biting for 3s. Hits on them are halved while you are on it; a teammate knocks you off in 2. (20s)
Unlocked for good by the Titan rank ($84.99), which includes Champion and Vanguard, or earned one at a time for the season in the Lab.
Lifesteal, heal on every hit, up to 5 hearts per life.
Bat Form: fly as a bat for 10s. You take DOUBLE damage and ANY hit drops you out of it instantly; nearby survivors hear your wings. Click again to land early. (30s)
Support class for the horde.
Spawn Beacon: place a respawn point for infected (max 3, 20s each; survivors break them in 8 hits). Nearby infected gain Speed + absorption, and their kills feed your streak (60s)
Recall: teleport to your newest beacon. (12s)
Hits make survivors glow for everyone and charge your energy.
Mirror Decoy: a clone marches 10 blocks ahead and stands there for 8s. Anyone who hits it takes 1❤ as it shatters, and a second click SWAPS you with it (20s)
Vanish: at 100% energy: 10s invisible + 8 fake copies. Breaks on damage. Kept through death if unused.
30% knockback resistance; compact frame.
Stampede: a 0.8s telegraphed roar, then a 1.8s charge nothing can slow or knock aside: 4❤ and survivors flung clear. A wall, or any survivor hit before he connects, leaves him winded. Sidestep it or flash him. (20s)
Golden axe; melee sets fire; immune to fire & lava.
Mortar: HOLD to charge ~0.6s and fire 3 explosive shells (1❤ each + knockback + burn), or TAP to rise and hover ~3s then click again to rain them from above. (20s)
Shell Guard, a toggle item: it roots you and halves ranged damage, but the shell can't attack.
Anti-Grav Volley: 3 homing bolts throw survivors up and down for 3s; each hit shields you (absorption). Block as the bolt lands to cancel it. (18s)
Marks whoever your crosshair finds while airborne, and they're warned.
Swoop: rocket up and HOVER; right-click again to dive-bomb your mark (2.5❤ + stagger). (20s)
Arrows never knock you back.
Harpoon: throw the trident: hit a survivor to reel yourself to them, hit a wall to grapple there. The trident itself melees like a bare fist. (20s)
Not for sale. 1 to 10 players, depending on lobby size, are chosen as Mother Zombies when the infection lands. Win as one for double cookies.
The alpha of the horde, a sharper sword, an alpha grenade, double cookies if the infected win, and a free class switch before her first fight.
Alpha's Wrath: short windup, then a shockwave out to 5 blocks: knocks survivors up and slows them, but deals no damage. (40s)
Alpha Roar: drags every survivor within 6 blocks toward you and slows them, never over a ledge; no damage. (30s) Pick one in /profile.
Earned during the Halloween 2026 event, which ended on 13 November. Players who unlocked it keep it.
Wooden sword and zombie armour. Survivors' sticky and flash grenades don't touch you.
Carrion Tunnel: a tunnel of bats pours onto the survivor in your sights for 5s and bites for 2❤ in all; if they turn, it swings to the next survivor (3 at most). A survivor who blocks takes no bite damage. Every bite charges Rise: at 100% you sink into the ground and come up beside a random survivor (2s rising, can't hurt or be hurt, then you fight at full strength). (18s)
Wooden sword and zombie armour. Your hit on a ballooned survivor pops one of their balloons and gives you Speed I for 3s.
Balloon Rocket: mark the survivor in your sights and corkscrew at them on a bunch of balloons, homing all the way. No damage: your mark, and anyone you pass through, is blinded for 3s. Where you land you plant a balloon for 6s: survivors within 4 blocks get balloons tied on and a screen full of drifting balloons. Survivors can pop it by hitting it. (20s)
Wooden sword and leather armour. A brute that throws its own kind.
Hurl: pick up another Mutant and throw them about 30 blocks where you aim: they land without fall damage and flatten the first survivor they reach for 2❤. You're slowed while carrying, and the cooldown is only spent on the throw. Boulder Toss: with no Mutant in reach (or sneaking), tear a boulder out of the ground and throw it: the first survivor it reaches takes 3❤ and is knocked flying. While you hold the ability, only you see the arc and a landing pad. (18s)