KF2 XP and Difficulty Scaling: Level Table, Zed Health and Bounty

This page rewrites the numbers of an early-access era community guide to experience and scaling in Killing Floor 2. The figures were measured for that build (the Katana and Flamethrower were not yet linked to their perks and some perks did not exist), so treat them as a historical reference: current values may differ. For current perk details see Berserker levels.

XP needed per level

Each level costs more than the one before, which makes early levels fast. Harder difficulties give more XP per kill, which partly offsets this.

Level	XP to level	Total XP
1	2,640	2,640
2	2,917	5,557
3	3,224	8,781
4	3,562	12,343
5	3,936	16,279
6	4,349	20,628
7	4,806	25,434
8	5,311	30,745
9	5,868	36,613
10	6,484	43,097
11	7,165	50,262
12	7,918	58,180
13	8,749	66,929
14	9,667	76,596
15	10,683	87,279
16	11,804	99,083
17	13,044	112,127
18	14,413	126,540
19	15,927	142,467
20	17,599	160,066
21	19,447	179,513
22	21,489	201,002
23	23,745	224,747
24	26,238	250,985
25	28,993	279,978

XP per Zed by difficulty

Zed	Normal	Hard	Suicidal	Hell on Earth
Clot, Slasher, Cyst	8	11	11	11
Crawler, Stalker	8	10	10	10
Gorefast	11	14	14	14
Bloat	17	22	30	34
Siren	11	15	15	15
Husk	15	20	27	31
Scrake	34	45	60	69
Fleshpound	35	47	63	72
Hans	1291	1694	1790	1843
Patriarch	146	195	263	302

Rules for XP:

• XP goes to the class of the weapon used for the kill; kills with off-perk weapons give XP to that weapon's class.
• If you damage with one class's weapon and finish with another, the XP is split between the two classes.
• Assist kills (you damaged the Zed but someone else killed it) award full XP.
• A shove attack does not count as melee, so it gives XP to the class of the weapon you are holding.
• In that build, Katana and Flamethrower gave no XP because their perks were not yet in the game.

Perk-specific bonus XP

• Commando: bonus XP for killing Stalkers with Commando weapons. Total XP for a Stalker is 11 / 15 / 16 / 19 (bonus part 3 / 5 / 6 / 9) on Normal / Hard / Suicidal / Hell on Earth. Pistol, knife and grenade kills get no bonus unless the Zed was already damaged by an on-perk weapon.
• Support: XP for welding every 510 HP of a door (a door usually has 1500 HP): 6 / 8 / 10 / 14 XP.
• Medic: XP for every 20 HP healed on teammates: 2 / 2 / 3 / 4 XP.
• Berserker: bonus XP for killing a Zed within 2 m of another player: 6 / 8 / 10 / 14 XP.

Difficulty scaling

Setting	Normal	Hard	Suicidal	Hell on Earth
Trader time (s)	75	60	60	60
Wave size	0.85x	1x	1.3x	1.7x
Zed damage	50%	100%	125%	175%
Zed speed	87%	100%	110%	115%
Zed bounty	110%	100%	85%	65%
Spawn money	300	250	200	100
Death penalty	0.05	0.1	0.2	0.25
Ammo pickups	40%	30%	25%	25%
Item pickups	45%	35%	25%	10%
Self splash damage	10%	20%	30%	100%

Notes: Hard is the difficulty with all scaling at default (the author sees it as the "real" Normal). The death penalty removes a percentage of your current money. Ammo and item numbers are spawn probabilities. Some Zeds have extra damage modifiers on top of the general multipliers. On Normal Zeds are slower and deal less damage; on Suicidal damaged Zeds are likely to enrage and sprint; on Hell on Earth most Zeds sprint, some dodge or roll and you take full damage from your own explosions.

Bounty (dosh per kill)

Difficulty	Clot	Crawler	Gorefast	Stalker	Bloat	Husk	Siren	Scrake	Fleshpound	Hans
Normal	7.7	11	13.2	16.5	18.7	18.7	27.5	82.5	220	550
Hard	7	10	12	15	17	17	25	75	200	500
Suicidal	5.95	8.5	10.2	12.75	14.45	14.45	21.25	63.75	170	425
Hell on Earth	4.55	6.5	7.8	9.75	11.05	11.05	16.25	48.75	130	325

The game keeps decimals for money but does not display them. At the end of a wave the money earned during the wave is split among survivors, in addition to what players earned during the wave.

Wave sizes (number of Zeds)

Wave size depends on the number of living players at the start of the wave. Examples for the long game (10 waves), Normal and Hell on Earth:

Players	Wave 1 Normal	Wave 10 Normal	Wave 1 HoE	Wave 10 HoE
1	21	35	42	71
2	42	71	85	142
3	58	98	116	196
4	74	124	148	249
5	85	142	170	285
6	95	160	191	321

For Hard the wave 1 numbers are 25, 50, 68, 87, 100 and 112 for 1 to 6 players; for Suicidal 32, 65, 89, 113, 130 and 146. On a long game, wave 10 on Hard is 42, 84, 115, 147, 168 and 189, and on Suicidal 54, 109, 150, 191, 218 and 245. Short (4 waves) and medium (7 waves) games use the same first waves with their own final values.

Zed health (6 players versus 1 player, body and head)

Base health scales with the number of living players for medium and large Zeds; Clots, Crawlers, Gorefasts and Stalkers stay at fixed values.

Zed	Normal 1p	Hard 1p / 6p	Suicidal 1p / 6p	Hell on Earth 1p / 6p
Clot	75	100	100	100
Crawler	41	55	55	55
Gorefast	150	200	200	200
Stalker	56	75	75	75
Bloat	304	405 / 911	405 / 911	405 / 911
Husk	347	462 / 693	624 / 936	716 / 1074
Siren	173	230 / 345	311 / 466	357 / 535
Scrake	935	1100 / 3850	1485 / 5198	1705 / 5968
Fleshpound	1125	1500 / 5250	1875 / 6563	2325 / 8138
Hans	2975	3500 / 16625	4725 / 22444	5425 / 25769

Head health on Hell on Earth (1 / 6 players): Scrake 750 / 1875, Fleshpound 813 / 2031, Husk 193 / 241, Siren 194 / 242; small Zeds' heads 20 and Bloat's 40. On Normal the Scrake head is 510 (1 player) to 1275 (6 players) and the Fleshpound head 488 to 1219. The guide notes that Hans's head has its own static health value that is enormous, so decapitating him is not realistic.

Damage multipliers by difficulty are those shown in the scaling table (Normal 0.5x for most Zeds and 0.425x for Scrake and Fleshpound, Suicidal 1.25x with Fleshpound 1.125x, Hell on Earth 1.75x for all).