You fought through Gigacocoon

You fought through Prime Reactor

You fought through Thule Wulz Grotto

You shopped at the store

Heal yourself with a medkit 100 times.

Kill a zombie with 10 different melee weapons.

Find 60 collectibles.

Find the hidden basketball on the moon and score a hoop with PK Slam

S.K.A.T.E. from the Blisk dome to the base's entrance without interruption

S.K.A.T.E. from the landing zone near Tarkovskoye along the tracks to the East without interruption

Complete all odd jobs

Destroy a washed-up scammer in Takoshima