KF2 Endless Mode Wave Progression Reference
Interactive reference for Endless Mode — simulate any wave to see estimated ZED counts, ZED upgrade probability, and whether a special Outbreak wave may occur. All 6 Outbreak types are documented below.
255
Maximum wave cap
Wave 6+
Special/Outbreak waves begin
Wave 21
ZED upgrades start (HoE)
Wave Simulator
Est. ZED Count
137
wave 25
ZED HP Multiplier
1.04x
base = 1.00
ZED Upgrade Chance
4.0%
per ZED (HoE only)
Special Wave
Possible
wave 6+ can be Outbreak
All 6 Outbreak Types
Boom
All ZEDs explode on death, dealing significant area damage to nearby players.
Tip: Spread out — chain explosions can wipe a clustered team instantly.
Tiny Terrors
All ZEDs are miniaturized, making them much harder to hit with aimed fire.
Tip: Shotguns and spread weapons excel here — precision rifles struggle.
Bobble ZED
All ZEDs have comically enlarged heads, making headshots easier but movement erratic.
Tip: Great wave for Sharpshooters — heads are massive targets.
Poundemonium
All standard ZEDs are replaced by Fleshpounds and Quarter Pounds.
Tip: Stay mobile and use explosives — a Demolitionist is critical on this wave.
Up Up and Decay
ZEDs gain the ability to float and fly, attacking from unexpected angles.
Tip: Watch your flanks and above — movement-based weapons are more effective.
Beefcake
All ZEDs are enraged Fleshpounds. Treat every ZED as a Large ZED threat.
Tip: The hardest Outbreak — coordinate targeting and use all cooldowns immediately.
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