For those who are still enjoying Valve's Portal 2 will be glad to know that a new "unofficial" map pack has been released by creator Patrick Muprhy, titled 'Designed for Danger'. The map pack offers players eight levels, each one satisfyingly difficult with a campaign style story set before the events of Portal 2.

Designed for Danger is a Portal 2 Campaign that offers eight new levels and 1 to 2 hours of play time.

In the campaign, you assume the role of Chell during an early part of Portal 2. This time however, things turn out differently. The actions of a rogue force will set you on a new path through Aperture Laboratories.

Watch your step and prepare for adventure!

If you are keen to test some portals and try your hand at the map pack, you can find a local download available here. You can also check out the trailer below for a quick overview of each of the eight maps.