Easiest one to find, when landing climb ladder down and go west.



After landing, climb a ladder up, walk on the red thread to the east, keep going east until you fall there



On the B10 level on east of map, keep going east until reaching this place. Falling after this place is deadly


To the south east of b11 level(several levels down), in the bats area. There is a warning rabies sign before


on lebel B16(where you escape with bike) go full east untilyou are forced to climb down by one or two levels, then go west and reach this place

Below B18 on the sougthwest of the maps, in the caves, you must reach this are by walking through endless corridors or swim a lot. A toxic algae sign is displayed before.


West of the map, B5 level


Missing screenshot:climb the ladder before the rocket console then go left unbtil you reach this code.




on level 8 north west in the base



Missing screenshot:always in the west of the base, on g floor, ;is a sign with "clean room"written. Go in this area which is a ware house,go downuntil yoy findaladder, climband explore, another code is there