KF2 Perks and Skills Reference (Thai Translation, Early Build)

A Thai community member translated the perk and skill descriptions of Killing Floor 2 for players who find English hard, taking the data from in-game text and the community Stats and Mechanics spreadsheet (credit to the spreadsheet author Simplecat). This version covers the early perk lineup, including the Survivalist, and was written for an older game build, so numbers can differ from the current game. For a newer reference see KF2 perk skills in Thai (2024) and the perks A to Z guide.

Terms worth knowing

• Stun: the ZED stands still.
• Stumble: the ZED loses balance, like a mini stun.
• Knockdown: the ZED falls over; be careful because it gets back up.
• Parry: blocking right as a hit lands reduces its damage.
• Every weapon has its own stun, stumble and knockdown power, and every ZED has resistance to each; the effect triggers when your power overcomes that resistance. The exact numbers are in the spreadsheet.

Berserker

Perk bonuses: Clots cannot grab you; Nightvision instead of a flashlight; +1% damage per level (starting at +25%) with Berserker weapons only; +3% damage resistance every 5 levels.

Level	Skills
5	Dreadnaught: +100% health (200 HP). Skirmisher: +20% movement speed, +25% sprint speed, regenerate 1 HP per second.
10	Vampire: +3 HP for each kill and +20% attack speed. Butcher: +20% attack speed and +20% damage.
15	Resistance: +15% all damage resistance and +15% more against poison and sonic (30% total). Parry: after a successful parry for 8 seconds you get +30% damage resistance, +5% attack speed and +35% attack damage.
20	Smash: +50% heavy attack (alt-fire) damage, +25% headshot damage, +200% stumble power. Massacre: +5% attack speed and +30% light attack damage.
25	Zed Time: you move at normal speed. Berserker Rage: each Zed Time start or refresh restores 50% health and nearby ZEDs flee. Spartan: run and attack as normal during Zed Time.

Commando

Perk bonuses: +1% damage per level with Commando weapons; see cloaked enemies and enemy health, range 10 m plus 2 m per level; Zed Time extensions start at 1 and gain 1 every 5 levels; Nightvision (hold the flashlight key); +2% reload speed every 5 levels.

Level	Skills
5	Tactical Reload: faster reloads. High Capacity Mags: +50% magazine size for the perk's guns.
10	Fallback: +85% damage with the 9mm pistol and knife, +50% faster weapon switching. Impact Rounds: +150% stumble power.
15	Tenacious: +25% health and armor. Prepared: +20% ammo for the perk's primary guns.
20	Hollow Point Rounds: +30% damage. Eat Lead: +100% magazine size.
25	Tactician: normal-speed reloads and 2x faster weapon switching in Zed Time. Machine Gunner: +3% damage and 3x fire rate in Zed Time.

Support

Perk bonuses: +3% door welding speed per level; +1% shotgun damage per level; +20% shotgun penetration per level; +1% ammo per level. Passives: Strength (+1 kg carry weight every 5 levels), Ammo Backpack (teammates can refill ammo from you) and Door Repair (repair broken doors).

Level	Skills
5	High Capacity Magazines: +75% magazine size. Tactical Reload: faster reloads.
10	Fortitude: +50% health. Salvo: +30% damage.
15	Armor Piercing Shot: more penetration. Tight Choke: 50% less pellet spread.
20	Resupply Pack: teammates can restore 30% ammo and 20% armor from you; +20% total ammo per gun. Concussion Rounds: +150% stumble power.
25	Penetrator: shots pierce all targets in Zed Time. Barrage: fire rate close to normal in Zed Time.

Field Medic

Perk bonuses per level: +8% syringe recharge speed, +2% healing potency, +3% poison resistance, +0.4% movement speed and +3% armor.

Level	Skills
5	Symbiotic Health: +25% health, and healing teammates heals you for 6% of your max health. Resilience: 1% damage reduction per 1 HP lost, up to 50%.
10	Adrenaline Shot: healing darts give teammates +10% movement speed for 5 seconds. Combatant Doctor: +50% magazine size for the perk's guns and +10% movement speed.
15	Focus Injection: healing darts give teammates +5% damage for 5 seconds. Acidic Rounds: the perk's guns poison ZEDs for damage over time.
20	Coagulant Booster: healing darts reduce teammates' damage taken by 10% for 5 seconds. Battle Surgeon: +20% damage.
25	Airborne Agent: release a healing gas around you in Zed Time, like a healing grenade. Zedative: +30% damage in Zed Time and a toxic cloud on kills.

Demolitionist

Perk bonuses: +1% damage per level; +1 explosive ammo every 5 levels; explosive resistance starting at 10% and +2% per level; a teammate can take one grenade per wave from you; doors you weld explode when destroyed; Reactive Armor: on lethal damage you release a high-damage explosion and are left with a few HP.

Level	Skills
5	Bombardier: +25% damage with the perk's explosive weapons. Shock Trooper: faster reloads and +10% knockdown power.
10	High Impact Rounds: +25% damage on direct hits. Extra Rounds: +10 rounds in explosive weapons (not C4).
15	Sonic Resistant Rounds: Siren screams do not affect your explosives. Fragmentation Rounds: +50% explosion radius.
20	Armor Piercing Rounds: +50% damage on direct critical hits. Concussive Rounds: +50% reaction, stun, stumble and knockdown power.
25	Destroyer of Worlds: explosives emit a strong radiation wave in Zed Time that poisons ZEDs. Mad Bomber: fire and reload near real-time speed in Zed Time with a larger blast area.

Firebug

Perk bonuses: +0.8% damage and +0.8% reload speed per level; enemy fire resistance 30% plus 2% per level; self fire resistance 25% plus 3% per level; +10% starting ammo every 5 levels.

Level	Skills
5	Bring the Heat: +35% damage. High Capacity Fuel Tank: +100% magazine size.
10	Barbecue: burning lasts 150% longer. Ground Fire: ground fire does 3x damage and slows ZEDs by 30%.
15	Napalm: burning ZEDs ignite others they touch. Zed Shrapnel: ZEDs killed by your fire have a 30% chance to explode, damaging and stunning others.
20	Heat Wave: ZEDs burned at close range are pushed back. Firestorm: longer range for all perk guns.
25	Pyromaniac: near-real-time fire rate and unlimited ammo in Zed Time. Inferno: ZEDs you burn move 30% slower and take 50% more burn damage in Zed Time.

Gunslinger

Perk bonuses: +1% damage per level; bullet resistance 5% plus 1% per level (max 30%); +0.8% movement speed per level (max 20%); -1% recoil per level (max 25%); +3% faster reload in Zed Time per level (max 75%).

Level	Skills
5	Steady: no movement slowdown when aiming, +7.5% damage while aiming, much lower recoil. Quick Draw: less hip-fire recoil, +5% movement speed and 50% faster weapon switching.
10	Rack 'em Up: a headshot gives +10% damage to the next shots, stacking up to 5 times. Bone Breaker: +20% damage and +30% damage to arms and legs.
15	Line 'em Up: penetrating bullets do not lose damage on the next ZED. Speedloader: faster reloads.
20	Skullcracker: headshots slow the ZED by 30%. Knock 'em Down: shooting a running ZED's legs gives huge knockdown power, shooting the chest gives huge stumble power.
25	Whirlwind of Lead: unlimited ammo in Zed Time. Fan Fire: 3x fire rate and normal-speed reloads in Zed Time.

Sharpshooter

Perk bonuses: +1% headshot damage per level; -1% recoil per level (max 25%); +2% faster weapon switch per level (max 50%).

Level	Skills
5	Sniper: +25% damage when standing still with perk weapons. Marksman: +25% fire rate and +10% movement speed with the perk's weapons.
10	Stability: +30% damage, +50% movement speed and +20% reload speed in the conditions described in the game. Ballistic Shock: +100% stun power.
15	Rack 'em Up: stacking headshot bonus as above. Tactical Reload: faster reloads.
20	Dead Eye: -10% recoil and +10% headshot damage when aiming. Always Prepared: +25% ammo for perk weapons and built-in grenades.
25	Assassin: in Zed Time headshots have a 5% chance to trigger Zed Time again and +35% headshot damage. Ranger: same 5% chance, and headshots stun ZEDs in Zed Time.

SWAT

Perk bonuses: +1% damage per level; bullet resistance 5% plus 1% per level (max 30%); +4% magazine size per level (max 100%); +1% faster weapon switch per level (max 25%).

Level	Skills
5	Heavy Armor Training: while you have armor, damage cannot reach your health except sonic damage, Clots cannot grab you, and you start with 50% armor. Tactical Movement: no slowdown when aiming or crouching.
10	Close Combat Training: +85% damage with the 9mm pistol and knife, and you start with dual pistols. Tactical Reload: faster reloads.
15	Suppression Rounds: +100% stumble power. Ammo Vest: +30% ammo for perk guns.
20	Assault Armor: +50% total armor and start with 50% armor. Cripple: lots of hits slow ZEDs by 30%; headshots and weak points work faster.
25	Battering Ram: run at normal speed in Zed Time and knock down ZEDs with heavy damage when running into them. Rapid Assault: unlimited ammo, normal fire rate and +100% stumble power in Zed Time.

Survivalist

Perk bonuses: +0.6% damage per level with all weapons; damage resistance +1% per level (max 25%); armor +1% per level (max 25%); +3% faster reload in Zed Time per level (max 75%).

Level	Skills
5	Tactical Reload: faster reloads for Commando, Gunslinger and SWAT weapons. Heavy Weapon Training: faster reloads for Demolitionist, Sharpshooter and Support weapons.
10	Medic Training: +30% syringe potency and 50% shorter recharge. Melee Expert: +20% attack speed, +75% damage and +25% movement speed with melee weapons.
15	Ammo Vest: +15% ammo and grenades become healing grenades. Weapon Harness: +5 carry weight and grenades become fire grenades.
20	Spontaneous Zed-plosion: ZEDs have a 30% chance to explode on death, dealing 10 damage and knocking down nearby ZEDs. Make Things Go Boom: -40% explosive damage taken and +40% explosion radius.
25	Madman: 3x fire rate in Zed Time. Lockdown: all weapons stun ZEDs in Zed Time.