Finish the prologue.

Finish the St. Toma Dormitory.

Finish the Prasnova District.

Gib a mutant's head.

Gib a mutant's head with a melee weapon.

Complete the main campaign.

Pick up 50 items.

Stun 20 zombies with the kick.

Push 4 mutants with a single kick.

Kill 2 mutants with a single shot.

Kill a Gopnik while it's airborne.

Kill a downed mutant before it gets up.

Kill a Kuvalda.

Kill a Gora.

Complete the campaign in Cassette Tape Mode.

Complete the campaign on Hardcore difficulty.

Complete the campaign on Ironman Mode.

Find the MP5.

Find all gun mods.

Find all guns.

Get drunk.