To use codes, you must first activate the console.
Cheat Codes for “Death to Spies” Free Download
This requires starting the game with the -console parameter. Right-click on the game’s shortcut on the desktop, select “Properties” and in the “Object” column, after the closing quotation mark, add -console through a space. Now start the game, hit the tilde (~) and type the codes:
openlevels – opens all levels (the code is entered in the main menu of the game)
cheat “complete” – instant victory in the mission
cheat “invisible” – invisibility
cheat “silence” – enemies can’t hear you
setv r_hud 0 – hides the interface from the screen
setv cl_camplayer 0 – free camera (you can rotate the camera with the R and T keys)