Helltower? More like hello-from-up-here-tower!

Kill 30 enemies with Tikhar.

Complete the VOLGA level.

Isn't it pretty? That's going on the fridge.

Guess it was time to cash out.

Shoot for the stars, literally.

Find the passenger train car.

Find the guitar and teddy bear on the VOLGA level.

Install a modification of each category on a single weapon.

Name the locomotive.

Detach all train cars on the MOSCOW level.

Reach Commander (Level 55) in Multiplayer while playing online.