PZ Zombie Population Estimator

Compare all 6 built-in game presets to understand what each difficulty actually means in terms of zombies, loot, and timeline. Use the custom calculator below to see what any population multiplier feels like.

All 6 Game Mode Presets

Mode	Pop Mult	Zombie Speed	Strength	Loot	Utilities	XP
Initial Infection	0.5×	Shamblers	Weak	Abundant	6-12 months	2×
Apocalypse	1.0×	Shamblers	Normal	Rare	0-30 days	1×
Survivor	1.0×	Shamblers	Normal	Rare	0-30 days	1×
Builder	0.2×	Shamblers	Weak	Normal	0-30 days	1×
One Week Later	1.0×	Fast Shamblers	Normal	Common	0-2 days	1×
Six Months Later	3.0×	Shamblers	Normal	Rare	Instant off	1×

Custom Population Calculator

Population multiplier: 1.0×

0.1×5×

Est. zombies / cell

~650

per map cell (~100m²)

Density feel

Moderate

Closest preset

Apocalypse

Density Scale Reference

0.2×

~130/cell — Builder — uncommon encounters

0.5×

~325/cell — Initial Infection — manageable

1.0×

~650/cell — Apocalypse — standard difficulty

2.0×

~1300/cell — Intense — most areas dangerous

3.0×

~1950/cell — Six Months Later — overwhelming

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