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Thief 2 prototype appears in yet another leak


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While not quite on the same scale as Grand Theft Auto 6 or Diablo 4, another recent video game leak has provided an intriguing insight into one of the PC's most critically acclaimed games. Over the weekend, an unfinished prototype of Thief 2: The Metal Age appeared on the Internet.

The prototype is dated November 4, 1999, which is roughly five months before the game launched in March 2000. It was shared on Twitter by Arkane Studios level designer (and mega Thief-fan) Romain Barrilliot, stating "It is, as you can imagine, an absolute treasure trove."

Something pretty big happened today. A prototype of Thief 2: The Metal Age, dated Nov 4, 1999 was released on the Internet. It is, as you imagine, an absolute treasure trove so let's dig in, shall we? pic.twitter.com/kZWXcyM2HbSeptember 18, 2022

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Barrilliot then provides an in-depth breakdown of what is included in the prototype. Every level featured in the final game is available to play in the prototype version, but their stages of completion vary wildly. Some, like the fifth level "Eavesdropping" and the final level "Sabotage at Soulforge" are barely started, while others, such as the game's famous bank heist, are on the cusp of being finished.

Feature-wise, the prototype doesn't diverge radically from the final version, but Barrilliot notes a few interesting differences. For example, he points out the second mission "Shipping and Receiving" had two buildings to explore in the retail version, but the prototype includes a third building that was ultimately cut. Barrilliot also notes that the police station from Framed "looks nothing like what's in the final version in terms of texturing". Some missions also have different names. The ninth mission "Trail of Blood" is named in the prototype as "Trace the Courier" – the same name as the previous mission. Meanwhile, Thief 2's most famous mission "Life of the Party" is at this point known as "An Unexpected Guest".

Thief 2

(Image credit: Looking Glass Studios/Romain Barrilliot)

There are tons of other fun little details too, such as entire in-game documents that were cut from the release version, and the fact that the prototype uses objects from Looking Glass' sister-project System Shock 2 as placeholders for things like enemies and security cameras. It's well worth reading through the entire thread.

In the context of the other leaks that have occurred recently, however, the Thief 2 prototype shows two things. First, while leaks of in-development games can have negative consequences for those games, from causing grief for developers to actively hindering a game's creation, leaks can also have a positive effect, particularly when they are sufficiently chronologically removed from the game's active development. This is a fascinating slice of video game history with a lot to be learned on it, and the fact that it's appeared now means it can't hurt Thief 2's development.

Thief 2

(Image credit: Looking Glass Studios/Romain Barrilliot)

Which leads neatly onto my second point. The prototype demonstrates the vast amount of work that happens in the final stages of a game's development. With just five months to go before release, not a single level of Thief 2 is finished, and several of them are barely started. It's a striking example of how late in the day in development video games come together, which is especially important to understand in when looking at an in-development game like Grand Theft Auto 6. To peek behind the curtain is to see the actors in various states of undress, and it's silly to then complain about that when it's you doing the peeking.

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