John Bartkiw

John Bartkiw, credited as Testers.

Appear in the games: Katana Zero, Counter-Strike: Global Offensive, Portal 2, Left 4 Dead 2 and NHL Rivals 2004.

Credits (6)

Developer

Cover of Left 4 Dead 2

Left 4 Dead 2

Valve

Cover of Counter-Strike: Global Offensive

Counter-Strike: Global Offensive

Staff

Cover of Portal 2

Portal 2

Cover of Left 4 Dead 2

Left 4 Dead 2

Test

Cover of NHL Rivals 2004

NHL Rivals 2004

Devolver Digital

Cover of Katana Zero

Katana Zero