The team behind Factum Solus, a single player Portal 1 mod, has just released an awesome new teaser video!
The video shows off some really nice detailed maps which really have got that distinct Aperture Science style to them, but appearing more abandoned and derelict. This is the first time I have heard of the mod and as soon as I have more time and a working PC, I will be sure to try the first episode out since this looks really well made.
The video was originally going to be used for a release trailer, however instead it has been released as this short teaser video, check it out below:
You can check out more of the mod on their ModDB page here.