Aperture Tag: The Paint Gun Testing Initiative is a Portal 2 Mod. It's time to think with Gels! The Portal-Gun is gone, but the testing must go on! Grab the Paint-Gun Device and solve brand new test chambers in ways you've never solved them before!
User reviews:
Mostly Positive (1,965 reviews) - 75% of the 1,965 user reviews for this game are positive.
Release Date: Jul 15, 2014

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Community-Made Mod

This community-made mod requires that you have Portal 2 installed prior to running this game.

Click here to learn more about mods on Steam.

Aperture Tag: The Paint Gun Testing Initiative



“If you're like me, when you played Portal 2, you covered every room in as much bouncy gel as possible. Well now it's a whole lot easier, and you can color coordinate the walls with orange gel.”

“A surprising and fresh revival of Portal 2’s familiar puzzle elements.”
Jeep Barnett

“It looks great, it plays well, and it lasts 2-3 hours, giving it good value for money.”

Steam Greenlight

About This Game

Aperture Tag: The Paint Gun Testing Initiative is a community-made mod for Portal 2, inspired by TAG! The Power of Paint. The familiar Portal 2 gels are now contained within the Aperture Science Paint Gun Device and it's your job to test it out!

Featuring a new personality-core and an original story with 27 polished levels; the mod offers an exciting and fun experience in varied and interesting new locations throughout Aperture Science.

Introducing gels as the core gameplay mechanic completely changes the way you solve puzzles, explore, and survive all the challenges thrown at you!

Key Features

  • New Gameplay Mechanics for Portal 2
  • 27 Original Maps and a Full Campaign
  • A New Character with Original Voice-Acting
  • In-Game Level Editor
  • Access to the Source Files used to create the Aperture Tag
  • Single-Player and Co-op Workshop Integration with Source Instances to create your own Paint Gun Maps
  • Steam Trading Cards
  • Full Developer Commentary
  • Completely original Soundtrack by Abarax, Harry101UK, and Christopher McEvoy

System Requirements

Mac OS X
    • OS: Windows 7 / Vista / XP
    • Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher)
    • Memory: 1GB XP / 2 Vista GB RAM
    • Graphics: Video card must be 128 MB or more and should be a DirectX 9-compatible with support for Pixel Shader 2.0b (ATI Radeon X800 or higher / NVIDIA GeForce 7600 or higher / Intel HD Graphics 2000 or higher).
    • Storage: 4 GB available space
    • Additional Notes: Requires a Steam version of Portal 2 Installed
    • OS: MAC OS X 10.6.7 or higher
    • Processor: Intel Core Duo Processor (2GHz or better)
    • Memory: 2 GB RAM
    • Graphics: ATI Radeon 2400 or higher / NVIDIA 8600M or higher / Intel HD Graphics 3000
    • Storage: 4 GB available space
    • Additional Notes: Requires a Steam version of Portal 2 Installed
Helpful customer reviews
218 of 284 people (77%) found this review helpful
3 people found this review funny
5.8 hrs on record
Posted: November 24, 2015
I wouldn't complain about this mod if it were free, but charging for it doesn't make sense. It's significantly lower quality than a lot of free mods (Time Machine and Mel for example) and feels uninspired like the creators weren't actually into Portal as a series. The more difficult puzzles, as other reviewers have said, are based more on fake difficulty like requiring timing or luck over actually figuring out complicated solutions.

To put it simply, it's good, but not worth selling. Got tired of it fast even though I didn't pay for it myself.
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42 of 61 people (69%) found this review helpful
8 people found this review funny
4.1 hrs on record
Posted: November 20, 2015
I wasn't planning on getting this game until one of my friends gave me a -90% Coupon that's only 50 Cents.
Got back my 50 cents by selling 3 card drops that i got.

This mod is kinda easy at the start but also confusing later on it gets harder.
I don't play a lot of Puzzle games because i don't like playing hard(thinking) types of games but this one wasn't that hard for me.
Still a very good game to kill some time when ur bored.

I recommend getting it when it's on sale not buying it for 5 Euros because i don't think that this mod is worth that much. I pretty much got it for free and i enjoyed it.
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16 of 20 people (80%) found this review helpful
1 person found this review funny
6.0 hrs on record
Posted: December 31, 2015
Aperture Tag replaces your Portal gun with a new Paint gun. Now you must shoot blue and orange goo in order to solve puzzles. Portals still play a role in the puzzle solutions, but you don't get to control their placement.

This game consists of four chapters that ramp up nicely in difficulty from an introduction to jumping to some quite challenging combinations of switches, portals, blocks, and goo. I thought the difficulty level was perfect. I only had to look up one puzzle solution online in chapter four, and then felt silly for doing so since I missed an obvious solution.

As with the other Portal mods, this game allows for user-created content. I played a good number of the top-rated user levels and found them great as well. Best of all, when playing the Perpetual Testing Initiative (aka user levels), Cave Johnson's voice introduces each level, so it really encourages you to play a good number of levels in order to hear all the funny things Cave has to say.
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30 of 48 people (63%) found this review helpful
2 people found this review funny
4.1 hrs on record
Posted: February 6
I did buy this game to play coop with a friend, and because the single player mechanics were cool ( i tought ) ... boy i was wrong. First of all this game does NOT have a coop mode , it's marked as coop because some users dropped some coop maps for this game in the workshop and so the dev decided to add the " coop " mark to it... shame. Second of all,the singleplayer is not difficult at all FOR THE TESTS THEMSELVES... in fact ,most of the time you'll be able to figure out the solution but you'll get bored of this game quickly because of how frustrating it is to get the timing right.... after finishing this game i can say that the soundtrack and the voice acting didn't bother me that much , but the fact that the dev re-used some PORTAL 2 singleplayer levels in this game ( i want to remind you that this is a mod and usually mods are FREE ) shows lazyness and the ending is really predictable and unoriginal. Portal :Mel stories and Thinking with time machines are free and are better than this ... stay away from this game until it gets to less than 1 euro/dollar , it's just not worth it , if you are a die-hard fan of the portal saga you might enjoy it like you might not.... it all depends in your thirstiness for new content.
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14 of 20 people (70%) found this review helpful
3 people found this review funny
14.2 hrs on record
Posted: December 4, 2015
My favaourite linear plot mod.

1. New campain.
2. New testing elements.
3. Edited puzzlemaker.
4. Amazin Soundtrack.
5. Nice map design.
6. Extras.
7. Wrokshop.
8. Steam emoticons/backgrounds/cards

1. Linear plot
2. Short
3. Easy puzzles.
4. Some things doesn't exist in aperture science.

Final rating:
Its my favourite except Portal Stories: Mel mod for Portal 2 , there is no bugs but its to short.
I rate it 9/10

Thanks for reading.
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