Portal 2

Portal 2

219 ratings
File Size
40.947 MB
May 3, 2017 @ 3:27pm
May 4, 2017 @ 6:54am
6 Change Notes ( view )

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In 4 collections by Demon Arisen
Demon Arisen's Logic Puzzles
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The Best of Demon Arisen (25+ Fun & Logical Puzzles)
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Demon Arisen's Hard Puzzles
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Demon Arisen's Monoportal Puzzles
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Cave Johnson here. I've just been informed that a Mr L.B. from our programming department has been unwell recently. Sorry about that, it's probably the micro-parasites we put into your keyboard. Don't worry about it, all they do is make you feel unwell but actually you're fine - apart from being full of parasites feeding off your blood. I've also been informed that our friend Mr L.B. is a little irritated at how long these pre-recorded messages are getting. With all due respect sir, you're an idiot and we've put more parasites into your keyboard. Cave Johnson, we're done here.


Welcome to Axiom, an ambitious monoportal map with multiple test chambers. There are, in total, four tests of increasing difficulty: three small tests, each focusing on one gel type, and then a final challenge with all three gel types. Each test has only one stationary orange portal, so you'll have to use your blue portal to manipulate the gel in clever ways.

Gel maps and monoportal maps are both very difficult to create, so combining them was a real challenge. I hope it's paid off.

An "Axiom", in logic, is something which is assumed to be true, a constant. In this map, the orange portal is stationary - it is constant, assumed to be true, hence the name.

Difficulty: Medium-Hard

Music: Portal Stories: Mel - Acceleration by Harry Callaghan/Harry101UK

Feedback and playthroughs are much appreciated :)

No LBs were harmed in the making of this description (we <3 you LB)
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Tronsnake Sep 12, 2019 @ 6:30pm 
Ahhhhhh!!! Too much jumping through horizontally-placed portals to land on the other side!!! XD Awesome puzzle, though!
lfairban Aug 26, 2019 @ 10:54am 
Great chambers. The timing to get the cube was a little tight, but the whole thing was very innovative.
_galaxy Jul 23, 2019 @ 12:49pm 
Apart from the last map, these puzzles manage to not be so linear for a monoportal-ish map! While the last was still linear, well it was really clever and very challenging. This is one of my favorites!
Demon Arisen  [author] Jun 24, 2019 @ 9:57pm 
@Eloni_Baloni Well done! :) Glad you enjoyed it
EloniBaloni Jun 24, 2019 @ 3:05pm 
Awesome! I loved the last part of it. I felt so good after I did it. It was one of the few test chambers that I had fun in. Very clever!
Demon Arisen  [author] May 31, 2019 @ 1:09pm 
Thanks, vallibus! Really glad you liked it :)
vallibus May 31, 2019 @ 8:04am 
Another doozy from your workshop. Very nice.
Demon Arisen  [author] Feb 9, 2019 @ 6:31pm 
@wildgoosespeeder Thank you very much, that means a lot! :D I'm very very proud of this one, might be my best map ever.
wildgoosespeeder Feb 9, 2019 @ 4:45pm 
This is the most satisfying official three gel (bounce, speed, and portal gels) puzzle I have ever seen, even from a community standpoint! Not counting the reflection gel because it was dropped for unknown reasons and not known how it would have been implemented by Valve and the hacked-like adhesion gel by various Hammer mappers.
zigzagtenniscoe Dec 24, 2018 @ 3:14pm 
Yeah it's a bug in the source engine anyways and when I find an exploit solution in your maps I just try to solve it the intended way anyways because it's much more satisfying and the "exploit solutions" certainly does feel like cheating, and knowing you for the most part you don't have those kinds of solutions in maps :P