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 (1,849 reviews) - 75% of the 1,849 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
157 of 188 people (84%) found this review helpful
1 person 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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30 of 44 people (68%) 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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19 of 26 people (73%) found this review helpful
2 people found this review funny
27.0 hrs on record
Posted: September 25, 2015
Before anyone reads this review let me state this: Everyone already knows it costs money to play, and given how this point was driven home by many other people I do not feel any need to talk about it further here; this review is all about the actual game.

Aperture Tag is a very curious mod for Portal 2 that replaces the dual portal device with a specially designed paint gun that fires the two main types of gels: Repulsion (blue) and propulsion (orange). This shift in focus turns the game into a messy, but addicting style of gameplay.

From start to finish I had a blast using a gun that shot gel everywhere, and in limitless supply! There were points in the game when I just felt like coating the chambers with as much gel as possible, which indirectly served as a great venting technique to safely let out my frustration when I found myself stumped with a hard puzzle. I also enjoyed the transitions between maps; there's just something whimsical about riding vacuum tubes and getting a good look at the facility on the outside. I also liked the addition of the backdrops in the final set of levels, which definitely helped break from the monotony of the worn out and dilapidated industrial scenery that we've seen plenty of in the official Portal games. And lastly, the creativity of some of the maps were a real joy. Shooting turrets with blue gel, transferring gel through excursion funnels, not to mention those wicked half pipe turns with the speed gel, these were all some very cool mechanics.

There were only a couple qualms I had with the mod, and one of them was Nigel, for starters. Nigel was... a very drab core to interact with. Not because of his personality, but because his Voice Actor clearly didn't put much passion behind the role. Poor voice acting can make or break a character. My other problem was that the workshop isn't fully functional across all computer platforms; if you're on anything else other than Windows then you won't be able to make custom maps, which is a shame.

Overall though I thought this was a fun mod to play, and the negative points pale in comparison to the enjoyment I had out of it. Aperture Tag proves to provide a fun and unique twist to the beloved Portal series that will keep your attention all the way to the end.
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6 of 6 people (100%) found this review helpful
2 people found this review funny
1.8 hrs on record
Posted: August 31, 2015
It's ok... kind off... You can get more fun out of community maps for free.
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9 of 12 people (75%) found this review helpful
2 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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