Factorio Biter Evolution Estimator

Biter evolution is driven by three factors: time, pollution, and structures destroyed. Enter your game stats and server multipliers to see your current evolution percentage and enemy tier.

evolution = (time_factor × ticks) + (pollution_factor × total_pollution) + (destroy_factor × structures_destroyed)

Server Multipliers (from map-settings.json)

Time Factor

Default: 0.000004

Pollution Factor

Default: 0.0000000015

Destroy Factor

Default: 0.002

Current Game Stats

Hours Played

Check via /time in-game console

Total Pollution Produced

Production stats screen

Structures Destroyed

Kill stats in Production

Current Evolution

100.0%

— Full Behemoth Swarms

From Time

100.00%

From Pollution

0.07%

From Structures

0.00%

Evolution Milestones

Small biters spawn (early raids) 0%

Medium biters unlock 30%

Big biters unlock 50%

Behemoth biters unlock 70%

Maximum evolution (all enemy types active) 100%

Check In-Game via Console

/evolution Shows current evolution factor (0–1)

/c game.forces["enemy"].evolution_factor Exact value via Lua

/c game.forces["enemy"].evolution_factor = 0 Reset evolution to zero

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