Thief 2: The Metal Age PC Game Cheats

Attach through walls:
You can swing your sword through walls when an opponent is on the other side.

Avoid falling damage:
Press [Esc] while falling from a high location before hitting the ground. Although your character may grunt, he will not take any damage.

Landing softly:
Press [Crouch] before landing onto a surface and the sound produced will be softer.

Modify Starting Cash:
You can edit the dark.cfg file and add the line "cash_bonus n" N represents the amount of cash added to the beginning of a mission.

No Killing Rule:
This involves editing the USER.cfg file, first make a copy of the file, then add the following lines "cheats_active", "nokillgoalcheat" this will alow you to win with out worrying about the no killing rule in some missions.

Skip to Next Mission:
Press [CTRL] + [ALT] + [SHIFT] + [END] to skip to the next mission.

Various Cheats:
Add to dark.cfg:

Cheats_Active:
LockCheat

Lockcheat makes sure almost all locked doors and chests will be openable without need of keys and lockpicks.

Anti-cheats:
Add to user.cfg:
FailOnSee
FailOnKO
FailOnKill