Not only one of the most important stealth games from the genre's past but also among the best PC games of all time, '90s classic Thief: The Dark Project is one of those pieces of gaming history that you owe it to yourself to try. A renowned first-person adventure that pushed the boundaries of sneaking forward with clever use of light and sound along with its impressive enemy AI, and was co-created by developers who would go onto the likes of Half-Life 2 and BioShock, the re-released Thief Gold can be yours for next to nothing right now.
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Thief: The Dark Project is 20 years old, and players are celebrating with a level building contest