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

Finish the game on Novice difficulty.

Finish the game on Stalker difficulty.

Finish the game on Veteran or Master difficulty.

Visit all in-game locations.

Meet all barmen in the Zone.

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

Climb high and listen to the full version of radio message.

Kill Boss Helicopter at Lymansk hospital.

Let water run to the undergrounds, kill mutants and return alive.

Meet Forester and return him what is lost.

Go through the military Cordon and speak to Sidorovich for the first time.

Enter the secret city, Lymansk.

Use the service of all Zone technicians.

Assist Hermit and finish his quest in Undergrounds.

Help Semyon Lambee.

Find the stash with valuable habar at swamps.

Find the forgotten guitar.

Find the time machine in Lymansk.

Find the trophy AKM-47/2.

Join "Clear Sky" faction and defeat Renegades.

Help Free stalkers or Bandits to be victorious in their conflict.

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

Finish the game and do not join any faction after leaving the Swamps.

Join any faction after leaving the Swamps.

Be supported by and gain maximum reputation with 3 or more factions.

Sell goods for more than 100 000.

Upgrade 5 different weapons to maximum.

Sell goods for more than 250 000.

Liquidate machine gunner at military block post.

Be killed by grenades 20 times.

Walk 10 kilometers with overload.

Use guide service 10 times.

Drink 100 energy drinks.

When dived into that very basement with empty pockets.

Find all unique weapons.

Find each artifact in the Zone.

Find and steal items from back of the Suslov shop in marshes.

Kill 50 enemies with headshot.

Die from 5 different anomalies.

You found 18 flash drives. Use them wisely.

Enhance your maximum weight capacity by 60 kilograms.

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