"Portal: Alive & Kicking is a full remake and re-imagining of Valve's hit experimental title - Portal. Using the visual capabilities of Portal 2, A&K will shove you back into the cold test chambers of Aperture Science to retell the original story of Chell and GLaDOS. The best part? It's FREE."

After playing the fan recreation of Half-life using the Half-life 2 engine and seeing how awesome that was, I am very hopeful for this recreation of Portal. Portal was an awesome game i'd love to see live on in a more modern engine.

http://steamcommunity.com/sharedfiles/filedetails/?id=218303815