Choose three primary weapons that use different ammo.

Find all artifacts and journal entries

Find all coins

Fully upgrade all weapons

On the level HUNTER kill the nosalises before they break through the ventilation grilles.

Complete the level BLACK STATION without killing or knocking out any enemies.

Spend 60 seconds in a Radiation Hotspot.

Kill 50 humans with pneumatic weapons.

Kill 10 Spiders.

Complete the game in Spartan Mode.

Kill 5 amoebas.

Knock 30 human enemies out in close combat.

Kill 30 human enemies in close combat.