Сomplete the ANNA level.
Kill more Watchmen that Artyom does.
Complete the KHAN level.
Kill 20 Nosalises on the KHAN level.
Complete the PAVEL level.
Open 8 safe boxes on the PAVEL level.
Spend 3 hours on the DEVELOPER level.
Complete the SHOOTING RANGE and ARENA.
Complete the SPIDER LAIR level.
Kill 20 spiders with your flame thrower.
Complete the TOWER level.
Сomplete at least one HUGE mission.
Complete the SNIPER TEAM level.
Kill 10 enemies with headshots using your sniper rifle.
Kill 100 enemies with heavy weapons.
Find 30 artifacts.
Complete the KSHATRIYA level.
Complete the ASSAULT INFANTRY level.
Complete the game without killing any Humans unless forced to.
Continue playing to unlock this secret achievement.
Complete the game in Ranger Hardcore.
Complete the game in Ranger Mode.
Use all Musical Instruments in the game.
Kill 100 Human Enemies.
Kill at least one Enemy with each Weapon available in the game.
Kill all armed enemies on the REVOLUTION level, including all reinforcements.
Kill 5 Shrimp with Grenades.
Set 2 Enemies on fire at once.
Find all Equipment Stashes in the swamps.
Kill a Demon with the Helsing.
Kill all the Reds on the THE CHASE level.
Complete all 43 of Artyom's hidden Diary pages.
Stealthily kill 15 Enemies.
Kill 10 enemies in a row with Throwing Knives.
Hold the Platform without dying.
See all Visions in the Dead City.
Disarm 10 Traps.
Complete the BRIDGE level without a kill.
Find the Hidden Ammo in the abandoned part of the station on the QUARANTINE level.
Break 50 Lights.
Fall in the Swamp 10 times.
Kill 100 Mutants.
Find and return the crying child's Teddy Bear.
Install all possible Customizations for a Weapon.
Rescue the Women and Children on the BANDITS level without raising alarm.
Kill all Watchmen before they reach the Railcar.
Make 10 Spiders flip belly-up.
Complete the REVOLUTION level without killing and raising an alarm.
Turn off 40 Lights without breaking them.
Watch the entire Theater Show.
Collect 1000 Military Rounds.
Make 100 Purchases.
Write 10 of Artyom's hidden Diary pages.
Complete the ECHOES level undetected by the Watchmen.
Complete the FACILITY level without killing or raising alarm.
Take the Custom Pistol from the Locked Box.
Complete the SEPARATION level without killing or raising alarm.
Escape the chasing Nazis on the REICH level without being caught once.
Finish the ASHES level without taking a hit.
Complete training sequence.