These codes are used if you have an XBOX 360 PC controller.
Dead Space: Cheat Codes XBOX PC controller required Free Download
During the game, press START to pause, then enter one of the codes, if all entered correctly, there will be a sound.
Refill oxygen – Press X, X, Y, Y, Y.
Refill Stasis and Kinesis energy – Press X, Y, Y, X, Y.
+2 Nodes – Press Y, X, X, X, Y.
+1,000 Credits – Press X, X, X, Y, X.
+2,000 Credits – Press X, X, X, Y, Y, Y.
+5,000 Credits – Press X, X, X, Y, X, Y.
+10,000 Credits – Press X, Y, Y, Y, X, X, Y.