Thief

Between missions, Garrett can also find much loot in the city by just moving around and keeping his eyes open. However, the most lucrative is to take optional side missions. Here Garrett has to retrieve a certain object - usually it is just a quick burglary within the city, but sometimes they are real self-contained missions. Of course there is a useful usage for money: visiting a shop and stock up on equipment. The obvious choices are depleting resources like Garrett's trademark arrows which can be used for many tasks, e.g. regular arrows for distracting guards or water arrows to extinguish light sources, food items to heal, or smoke bombs.

One of the game's special features are the difficulty modes. While there are the usual three standard types - the highest does not allow for kills or civilian knockouts - the player can also add several other difficulty options, e.g. disabling focus, more expensive resources, slower movement, no kills or knockouts, no quicksave or permadeath. Because those reward bonus points for bragging rights, the difficulty can only be changed when starting a new game.

Besides the main campaign, there is also a challenge mode. This mode re-uses some of the game's mission areas and adds special objectives. The modes are Chain & Gain (there is a timer running out which can only be expanded by collecting loot), Chain & Gain Limited (Chain & Gain with an overall time limit) and Special Loot Hunt (finding as much special loot within a time limit by using the "hot and cold" indicators). The goal is to achieve high scores on leaderboards.

The PlayStation 4 version uses the DualShock 4 gamepad's light bar to emphasize the effect of being in the shadow (with a dimmed dark blue) or exposed to the light (with a bright white).