During the search for parts of Clara, when you go to the top floor for the head and kill the new robots with red flasks on top, pick the lock and search the chest. You will receive the most powerful weapon in the game, the Railgun.
Hurry up to get working codes for free sets with lots of free parts, weapons, a new armored car and other prizes.
The studio has acknowledged several failures in the past.
The project is multiplayer and free.