Half-Life 2: Short Stories is a team working on a group of modifications that take place in the same realm. A lot of the focus is on the story and gameplay, new innovative set pieces and puzzles. After the release of the first episode of Human Error, the team is planning to release more episodes and expand the characters and the world.
very ggod story (not that short, though) and its realization. skilfull programming and very tasteful use of both existing and new elements. I trrully enjoyed playing this and I hope for more :)