D.O.A.S. - All Services Offline (AddOn) are two levels, an intro and an outro to keep the story going. You can play both levels right from the start and watch both sequences. And there are a few gameplay-enhancements.

• The fog has a slight texture
• Icons show you where a textbox pops up and where you can interact
• Intro and outro

• Windows: Win7
• Macintosh: OSX 10.9.5

Take a small peek into D.O.A.S. AddOn. You find screenshots from the intro, menu and from every world.