Thief: Deadly Shadows PC Game Cheats

Arrow Shops:
Each shop only has one of the four elemental arrows:

South Quarter AKA Well Equiped Thief: Water Arrows.
StoneMarket Proper AKA Marla: Moss Arrows.
Docks AKA The Undercurrent: Fire Arrows.
Old Quarter: Gas Arrows.

Damage Modification:
Locate the Default.ini in your \Program Files\Thief - Deadly Shadows\System directory and open it with a text editor.

Be sure you make a backup of this file before you start modifying it.

Locate the following section:
[Difficulty]
; -- THIEF 3
;
; AI visual acuity multiplier - how well AIs can see
Difficulty_AIVisual_Mult_Easy=0.9
Difficulty_AIVisual_Mult_Normal=1.0
Difficulty_AIVisual_Mult_Hard=1.15
Difficulty_AIVisual_Mult_Expert=1.2
;
; AI auditory acuity multiplier - how well AIs can hear
Difficulty_AIAudio_Mult_Easy=0.8
Difficulty_AIAudio_Mult_Normal=1.0
Difficulty_AIAudio_Mult_Hard=1.03
Difficulty_AIAudio_Mult_Expert=1.13
;
; AI tactile acuity multiplier - how well AIs can feel
Difficulty_AITactile_Mult_Easy=1.0
Difficulty_AITactile_Mult_Normal=1.0
Difficulty_AITactile_Mult_Hard=1.0
Difficulty_AITactile_Mult_Expert=1.0
;
; AI hitpoints multiplier - all AI starting hitpoints will be scaled by this
Difficulty_AIHitPoints_Mult_Easy=0.75
Difficulty_AIHitPoints_Mult_Normal=1.0
Difficulty_AIHitPoints_Mult_Hard=1.2
Difficulty_AIHitPoints_Mult_Expert=1.3
;
; AI combat speed multiplier - all AI combat animations are scaled by this
Difficulty_AICombatSpeed_Mult_Easy=1.0
Difficulty_AICombatSpeed_Mult_Normal=1.0
Difficulty_AICombatSpeed_Mult_Hard=1.1
Difficulty_AICombatSpeed_Mult_Expert=1.2
;
; AI-to-player damage multiplier - all damage applied to the player by the AI is scaled by this
Difficulty_AIToPlayerDamage_Mult_Easy=0.5
Difficulty_AIToPlayerDamage_Mult_Normal=1.0
Difficulty_AIToPlayerDamage_Mult_Hard=1.25
Difficulty_AIToPlayerDamage_Mult_Expert=1.5

Change the AI damage to player multiplier to 0.0 for almost no damage (note that a base damage still applies) to you; you may want to reduce the hit points of the enemies as well. Just a warning not to reduce the hit point multiplier of the AI to 0.0 or any hit (including a blackjack blow) will kill an enemy instantly.

Free Water Arrows:
You can get free water arrows in the training mission (which carries over to your subsequent missions) by waiting by the douse the torch exercise for water crystals to keep respawning. Before you leave the Blue Heron Inn forever, you may want to take your fill of 25 water arrows, which will go a long way in helping you keep shopping costs down.

Item Maximums:
Gear and items are bought to be used in Thief 3. Don't go to great lengths to save items if you think they can help you stay alive and undiscovered, but don't waste them on lone guards or civilians who cannot fight back.

On normal, the maximum gear Garrett may carry is:
Health Potion = 10
Broadhead arrows = 30
Noisemakers = 5
Water Arrows = 25
Moss Arrows = 20
Gas Arrows = 5
Fire Arrows = 15
Flash Bombs = 20
Explosive Mine = 5
Gas Bomb = 5
Oil Flask = 5

Metal Age Nightvision:
Although shadows are important to hide Garrett, sometimes it can too dark to see while hiding. Crank up the Gamma/Brightness correction in your options menu to see the surroundings while remaining hidden.