i somehow already liked this map even tho i don't remember playing this till just now. good map tho!

Super cool

Really great chamber.

amazing puzzle

love the map, well done!

Re-Running some of the older ones. This is one of my favorites.

Fun test..Thanks.

Great underground map. Lots of thought and planning needed.

Very, very nice! Requires a bit of thinking.....
Ending up behind the fan was a bit too difficult for me, very clever if you manage that!

Very good level. Too tough for me unfortunately; I had to youtube it.

Very clever - you move forward than you backtrack to move in the other direction. Excellent.

very fun map, very easy

Not a big fan of this jumping maps, but this one was very clever!

very fun, good map

Fun map.

Wow! Fun puzzle with nice looking design choices :) Really love the old Aperture!

Really cool and fun environmental puzzle. I got a bit stuck trying to coat that one pillar with bloo gel, it was not entirely clear but I also felt stupid when I realized how to do it. Detail work was pretty okay, as it was not the real focus of the map. More could have been added for sure though, and the displacements are a bit funky. I liked it though, great work :D

I uh

Somehow got REALLY lucky and ended up behind the giant fan without dying, without cheating.

Great fun

The level and the environment is just amazing

Okay, that was just amazing. :-)

great map, love that style, very well done!

Loved the presentation of the map. Everything is signposted really well. I just wish the final jump was a little more complicated as it falls a bit flat as a climax to an otherwise brilliant level. Really enjoyed the vista too.

Best map in a long while. Both the puzzles and the environment was really good. I wish they had more than binary feedback, they should add a 5 star system instead. I only give thumbs down to really bad maps...so it is a very limited system. I would give this 4/5 stars.

Good lest chamber!

Great level design , i enjoyed it so much

Excellent map. Very fun puzzle! Thanks!

It's not often that I find a chamber that I enjoy as much at this one.

great work, love the old style maps, you did a really nice job, and very fun! :o)

That was awesome. Great job, thanks!

Excellent !

Playing these "Most Popular" maps again after a few years. Still awesome!

Thumbs up for the way it looks

nice map,

Very fun.

Well built. The environment looks great. Just a bit easy. Thanks

very nice!

WOW!!!

I mean...

WOW!!!

Very nice, clever, beautifull... Thanks

Almost automatic, but very well measured and enjoyable. I wish another test starting right after the exit elevator, reusing these mecanics ! This 4 years old map is still interesting.

棒

Great map! Deserves all five stars! Not for the faint of heart. I you are put off by the difficulty, just keep playing other maps until your experience and skills improve. Great fun! Thanks!

Ok i miss judged this one. the first jump is not one that is very well known. its not in the game that i remember. Not a lot of peeps use it. the only way i found out about it is i played another dudes test. one that had a paythrough. trick is shot portal A at the top of the shaft. Go through the door. shoot portal B at the floor. Go through it then shot Portal A as you fall at the floor. [!spoiler]

Brilliant

I got the last part by accident. After returning from a failed attempt, I forgot to reposition the orange portal before speeding through the blue one. The bounce was a surprise.

The way ColorCubeMan embedded the clues is a delight. Challenging, logical,puzzles and clever clues are at the heart of the Portal charm. CCM nailed it.

Great work, i love the chambers in the old salt mine

Wow. I didn't get the ending without reading the comments here, but when I did, I thought "D'oh! Of course!". Wonderful chamber. Thank you for making it.