Achieve the top score in Flashout.
Gather all collectibles.
Help to repair a defective torpedo.
Gather all pennants.
Gather all Matryoshkas.
Play the board game once.
Target in Sight Achieve the top score in Periscope.
Beat all records on the bike.
Gather all available letters and notes.
Meet your superiors.
Enter Kursk.
Take a picture in the truck.
Do a favor for a tired soldier.
Achieve the top score in the PDA minigame.
Finish the briefing.
Use the Telnet.
Help Robert with the engine.
Gather information about the Shkval torpedoes.
Prove your expertise.
Open the captain's safe.
Gain the lowest Trust among the crew.
Gain the highest Trust among the crew.
Achieve the top score in Shmup.
Achieve the top score in Tunnel.
Visit all available rooms.
Leave bullets in the cartridge.
Discover the first ending.
Discover the second ending.
Discover the third ending.
Discover the fourth ending.
Hack 3 computers aboard the ship.
Finish all achievements.
Finish the game.
Finish all endings.
Watch all credits.
Relax in the pool.
Survive the sea baptism.
Prepare a gift for Dmitri.