Portal | Underground Story
created by Marty and Toby.

Description:
This Portal story is based on the MTN Portal Story | Part One!
This mappack includes around 75 levels.
in this mappack have Project One, Project twO and a Training room for Project twO
the Project One isent that good as Project twO beoucse the Project One was my second map i creat.
I learned alot of mapping when i make the One. so the twO is much better.

Features:

# Based on MTN Portal Story | Part One.
# Around 75 test chambers.
# Level design similar to the original Portal style.
# Level difficulty is balanced, like the original.
# New gameplay elements, e.g. super jumps and red laser.
# Easter eggs and secret chambers.
# Several paths and two possible endings.
# Awesome storyline.
# Epic moments/endings.

Don't forgett to read the "Read me!"

Have fun!

//Marty
//Toby

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Portal | Underground Story

Portal | Underground Story

Full Version 15 comments

Here you can download Portal | Underground Story To install, follow the Install steps.

Post comment Comments  (0 - 10 of 20)
SeanGaming
SeanGaming - - 166 comments

Here is your Underground Story Walkthrough, this mod is not that bad and lot of alternate way. Overall, it was perfect. There ya go, one of the greatest mod I have ever played.

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DarkLordElliott
DarkLordElliott - - 23 comments

I don't know about 75 test chambers, but Underground Story is definitely fun!
Bitchute.com

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ashifolfi
ashifolfi - - 113 comments

The summary grammer is uncanny

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INFERNOUX
INFERNOUX - - 1 comments

If you would like to see this mod broken to all hell hit me up on steam at INFERNOUX. (i'm a portal speedrunner, and the only chambers i did semi-correctly where the first couple before you get the portal gun)

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Guest
Guest - - 689,429 comments

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loudonlune
loudonlune - - 146 comments

This is great!

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DarthRiko
DarthRiko - - 1 comments

Found a glitch. In the room with the descending ceiling that crushes you, the obvious solution is to Portal over to the other side of the gap. What I did was put a portal under my feet, and when the ceiling was all the way down, I tried going back through the portal. I basically teleported to the top side of the crushing thing.

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drgnzach
drgnzach - - 23 comments

(buried)

This map pack sucks big time. In order to even play it, I had to move a bunch of files around because the person who made it didnt have the load file directing to the right folder. Then, when I finally was able to play it, the AI disabled itself. Also, a better name for this map pack would be "Portal: Copy and Paste" Because half the map's concepts have been stolen from other mappacks.

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ISOC-Dev
ISOC-Dev - - 134 comments

the project two have 2 endings xD

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projektariel
projektariel - - 532 comments

Challenging mappack with interesting puzzles, especially the second part is recommendable for every Portal fan though its ending came a bit suddenly. :/ All in all: 8/10 :)

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