A collection of the 4 most popular Portal custom maps featured on http://www.portalgamemaps.com/.
This Portal story is based on the MTN Portal Story | Part One! This mappack includes around 75 levels, with around five hours of exciting gameplay.
Puzzles that revolve around Gravity, and Love. Enjoy!
Based on Portal: The Flash Version, we have brought all the levels and concepts back to the original Portal version, in this huge mappack!