Welcome to The Darkest Cave - the most mysterious, hidden, and dangerous part of Deep. Apart from the danger from the parkour and monsters, now you have to master your movement in a no-light environment. Play through 20 new and exciting levels made to encourage deep exploration and investigation. But there's a twist: The Darkest Cave campaign is happening 10 years before the events of Deep's story mode, so there are some interesting places that looked a bit different than we know today. This new environment adds to the challenge of beating the levels and exiting the cave, so you need to be very careful about every single step. To see at least some parts of the cave, Jack gets a new look - The Enlightener Skin - A new cosmetic item that is mandatory in the Darkest Cave but can be also worn in other parts of the Story mode.

The Darkest Cave expansion contains the following content and cosmetics items:

• The Darkest Cave Campaign - 20 exclusive levels
  
• The Enlightener Skin
  
• New playing mode - Dark Mode - Play the official Chapters in this no-light environment
  
• Dark Mode in Level Editor - Make your own dark levels and share them to the Workshop*

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*You can play levels published to the Workshop that utilize the Dark Mode even if you don't own The Darkest Cave expansion