Work on Demo 2 for Back To The Dark has been proceeding. No timeline yet for when it will be available, but so far the following features will be included:

• Shadows! Everywhere!
• Armour.
• Necklaces.
• New Enemy behaviours.
• Redesigned item detail panel.
• Vertical doors!
• Updated hit detection.
  

Plus bug fixes and other smaller tweaks.

Things that aren't quite done yet, but hopefully will be included:

• New dungeon layouts. 
• New rooms?
• New textures?
• Equipped armour shown on-character.
• More stats.

Things not yet planned for Demo 2:

• Multiplayer (Sorry! But keep asking!)
• Skills
• Perks
• More spells.
• Spiders.