Finish S.T.A.L.K.E.R. Clear Sky on any difficulty level.

Finish the game on Stalker difficulty.

Visit all in-game locations.

Help Vasyan to repel the attack of dogs and climb down the stone.

Kill Boss Helicopter at Limansk hospital.

Meet Forester and return him what is lost.

Enter the secret city, Limansk.

Assist Hermit and finish his quest in Undergrounds.

Find the stash with valuable habar at swamps.

Find the time machine in Limansk.

Join "Clear Sky" faction and defeat Renegades.

Make the choice between Freedom and Duty and help your faction to defeat their rivals.

Join any faction after leaving the Swamps.

Sell goods for more than 100 000.

Sell goods for more than 250 000.

Be killed by grenades 20 times.

Use guide service 10 times.

When dived into that very basement with empty pockets.

Find each artifact in the Zone.

Kill 50 enemies with headshot.

You found 18 flash drives. Use them wisely.

You found all "meat" artifacts. Abomination, but useful to survive in the Zone!