Escape the Black Mesa reverse engineering department using the stolen aperture portal gun. It is not a learner's map or for beginners. Advanced techniques are definitely required to solve your way
This map has been under construction ever since the Original Facility was released, but the author has not been working non-stop on this map. He has been working slowly on this in order to keep my
This is a portal map. John tried to remake of the first video demo map you seen in the portal video. He couldn\'t figure out how to make the spikes/moving down on you so he included the vmf file so
The underlying concept of this map is the use of physics objects with portals. This map is playable all the puzzles work 98% of the time (do to the conflicts between portals and the physics engine).
This map is 100% playable all the puzzles work. With almost no bugs. Although there are a few ninja solutions to some of the puzzles. This map uses the principle of angular portal entry in some of
A small bonus map level for portal, containing a basic, advanced and challenges version of the map. A map for the Portal game. I tried to be a bit more unique and added balls to the game, and
The first Portal chamber of a little series MrCow had created. All Puzzles work 100% The turret fight may be a little hard but it\'s possible! Don\'t give up!
This map is 100% playable all of the puzzles work. There however is a bug at the beginning of the advanced map if you try to jump in after the cube. The author can't think of a good way to fix this
A map by RenStrike a level designer for Bethesda ( Elder Scrolls, Fallout) Looks like a hard map that is going to take you some time to complete, a must for those that just can't get enough of portal
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