[SP] Engineer
Engineer - A map designed to make you think.
Portal 2 is, at its heart, a puzzle game. Graphics; story; environment -- all of these are good but secondary.
I finished the masterpiece of Portal 2 but was left wanting more: a deeper puzzle, with intrigue and interlocking chambers, that required strategy, intuition, and ingenuity. I want to be challeged so that I am rewarded with a well-earned feeling of victory.
Combining logic with creativity is the quintessential essence of what Portal 2 maps should be all about, and in Engineer I believe I have recaptured that ideal.
It is my hope that upon completion, Engineer will stand out in your mind as unique, and that the fundamental puzzle design it presents is carried forth by the many others far more skilled in map-building than I.
Notes:
- It is possible to do things that make the puzzle unsolvable. However, I have added many "safety exits" (as fizzlers) which reduces this. You never need to pass through a fizzler to solve this puzzle - they are intended for emergency use.
- Engineer is not a tedious map. There are many solutions, but none are trivial, and if you find yourself repeating anything over and over again, it is not the correct solution. Just take a step back, and ponder the tools you have been given.
- Solution has been provided as a demo file, included. See Readme.txt for instructions.
File Name: engineer-1.4.1.zip
File Size: 5.25 MiB
Click here to download Engineer
Good map i recommend you reposistion the button for creating a portal wall at end of excursion as when you excusion up to the hole again the tunnel moves the cube off the button preventing you from getting bakc up as easily. maybe a glass wall or tuck it round a corner 
Aw, took me 51 minutes 
Most challenging map so far!
Can take some days or even weeks until I find time to upload the recording, because it will have a huge size (I only make 1080p videos!) and I will need to have quite some time to upload it when I'm in university. Gonna repost then.
Portal 2 Playlists: videos 1-200 | videos 201-400 | videos 401-600 | videos 601-800 | videos 801-1000 | videos 1001-1200
Took me more than an hour & I still havent solved it.
Its not even fun anymore, just annoying.
Got stuck so many times.
I probably wont try again.
I aknowledge the progress made so far, but until the no escape scenarios are dealt with, I'm afraid the project remains crippled. There's awesome maps requiring 1-2 hours to solve (Edifice, Distracted by Love), and none do that.
Just out of curiosity, wouldn't you try it as COOP? The forcible deaths would be overlooked then.
My bad; I added a glass wall in 1.3.3. I previously added a convenient light bridge in the main room to be used for getting to the top, not the funnel. Now, both are valid.
I think I solved a lot of the trickier "no escape scenarios" and added autosaves in intelligent positions. I don't see how people are getting stuck now. Yes, it's possible, but shouldn't be very common unless doing something where you will be obviously trapped, and notice immediately (and then reload the autosave).
Personally, I prefer a map where you have to at least think a bit before doing something to ensure that it's a good idea and you aren't doing something dumb. This could be considered quicksave management, a meta-element of puzzle design.
I never actually got myself into a position where I had to use one of the "un-stuck yourself" features in either of these maps.
Also, Edifice is long because it is a series of chambers, none of which is itself very difficult.
Distracted by Love is long because you initially have no idea what you're supposed to be doing. I spent 20 minutes trying to get into a pointless area above the blue gel before finally realizing there was nothing up there at all.
Engineer is a single chamber that makes the goal clear: Retrieve the cubes and laser.
Co-op maps prove harder to build since with 4 portals the options are almost limitless. I will work on a co-op map in the future (featuring the Combine Ball from Portal 1). It will take at least a week of design to do right, though.
Personally, I really enjoyed this map - maybe it's because I'm almost done with my engineering degree, har har. I didn't have problems with getting stuck anywhere (I did fall victim to the funnel once) but then again I was pretty cautious and tried to think ahead. I probably would have boned myself a few times without the warning.
I took more than an hour and still think that my solution was not perfect - I must have
I can't seem to locate your demo file - you said to check the readme for details, but I can't see a readme anywhere in the zip I downloaded.
Engineer is a single chamber that makes the goal clear: Retrieve the cubes and laser.
Actually I felt like this map was really confusing about where I was supposed to go and what order I should do stuff in, etc., because the layout is really spread out.
I'm sure a lot of time, effort, and patience went into making this. I would never be able to come close to matching this. Great job.
I actually just added the demo file and readme in version 1.3.3 -- If you'd like to see it, go ahead and download the map again, and it will be in there.