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Impossible Geometry

For the people asking how this was made, notice that sometimes there's a little flicker when using the stairs? thats because you've been teleported, probably using World Portals (non-portal device portals) to a different area. World Portals are from special editor, known as Hammer. Hammer was what Valve used to make the story mode and co-op mode levels.

Everyone, thank you all for making this map so popular.
Having over 800 individual subscriptions on my map, even though it's only been out for 10 days is just amazing for me!

Thank you so much!

GG complete

how did u make this test? i m amazed! =O

wat

HOW?

Hmph. Went through in about 30 sec's. Didn't figure it out, but got to the end very fast just by doing a little re-exploring. Not certain if I liked it or not.

Nice map, drove me nuts. Thanks for your work.

Antichamber reference, and good use of linked_portal_door but too short, no puzzle and missing texture