"THAT" is a single player source mod that runs on the 2007 SDK engine. It is more of an art installation than it is an actual game, it is my also one of my personal endeavors to push the "games as art" movement which I strongly believe in. The game features abstract surreal scenery and doesn't really contain an objective, it is more of a game to relax to and explore. The game is set in a grid of 9 maps, starting in the center (5th map). You can travel between the maps at your own leisure. I hope you enjoy it and that it encourages game designers to think outside the box when it comes to creating games.

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1 comment by notxenon on Nov 7th, 2011

So I enjoyed working on "THAT" so much, I had to push the concept further.
I started using the UNITY engine this time, I feel it gives me a lot more creative liberty since I can actually get models to work in there, as opposed to working with nothing but blocky brushes.
The abstract look will not only carry over but it will evolve, breathing life to an even more intense experience.

You can follow development on the blog:


I'm in the process of getting a kickstarter page for it ready, I will announce it's launch on the blog.

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Sep 13, 2011 Full Version 2 comments

"THAT" is a single player source mod that runs on the 2007 SDK engine. It is more of an art installation than it is an actual game, it is my also one...

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CrowbarSka Jan 27 2012 says:

I enjoyed it. At first I had no idea what I was doing, but was engrossed in wandering through the scenery. As I explored the city area I stumbled across some people praying to a cube, and the cube was musical. After this I started to notice more cubes hidden in the environments, and I retraced some of my steps to find ones that I had passed before.

This mod achieved so much without words. It made me FEEL something, which so many wordy games fail to do.

I found all the cubes, but I never worked out what they were for.

+3 votes     reply to comment
architectts Nov 30 2011 says:


+2 votes     reply to comment
UnrEaLHaZarD Nov 29 2011 says:

Thank you for this short but amazingly beautiful trip! I really had fun finding the cubes and just looking around! Nice work!

+2 votes     reply to comment
masterfox3000 Oct 10 2011 says:

It also reminds me of LSD for playstation.

+7 votes     reply to comment
masterfox3000 Oct 10 2011 says:

Excellent design, love to see artistic stuff like this goes on ModDB!

+2 votes     reply to comment
evee44 Sep 24 2011 says:

Not sure if what just happened was a bug, but when I was on the space map (unsure of what number, sorry) there was an antilion on one of the planets and one at the very bottom of the map. They weren't there the first time I entered it, but were there the second time. Is this intentional?

+2 votes     reply to comment
notxenon Creator
notxenon Sep 25 2011 replied:

oh no I haven't experienced these bugs but I've had two people show me. I can make a safe assumption that the info_landmarks are taking NPCs along?
I'm not sure how I can filter out anything but the player and global states during map change. I'll look into it, thanks for the info!

+2 votes   reply to comment
stringanomaly Sep 19 2011 says:

Amazing colors and design. Thank you.

+2 votes     reply to comment
parhana Sep 16 2011 says:

this looks really nice. i love mods that are original trying this out nice work :D

+2 votes     reply to comment
Kiewi Sep 15 2011 says:

This was amazing! Finally an original HL2 mod again, I really love it.

+3 votes     reply to comment
Kiewi Sep 15 2011 replied:

Sorry for doublepost, but I wanted to let you know that I wrote a little ****** review about your mod. :D

+2 votes     reply to comment
notxenon Creator
notxenon Sep 16 2011 replied:

The review made me smile, I had a lot of hesitation about making such a game because most people just wouldn't "get it" - but I felt that as an artist I needed to. Mainly because I know there are other level designers or artists out there can do the same exact thing and maybe even better but are hesitant to because of the uncertainty of the feedback. A couple of people I showed this to just weren't interested or didn't like it, even though this may still receive bad reception I feel like it needed to be done to open up new frontiers for both artists and designers.

Stop looking at games so objectively and think outside the box, try something absolutely new just for the sake of originality.

Now for the execution itself, I know there's a lot to be desired but I honestly don't know how I can take this further. I am limited by the fact that I can't program.

Anyway if you'd like to see a bit more of the same, I am working on a considerably larger project. It's called HIKKIKOMORI and it will be an exploration/adventure game taking place on an island, the island will be roughly 4 times the size of 'THAT' and will actually feature NPCs and objectives but will retain a moderate level of abstraction.
You can follow development of it on my tumblr.

Thanks for checking out "THAT" and writing a review for it, I really appreciate everyone who's played the game!

+5 votes   reply to comment
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Released 2011
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Highest Rated (3 agree) 9/10

You should know that I think it's really stupid to give games, that are subjective experiences an objective score so I rather would like to only write this review and not give it a score, but let's start anyway shall we? The first thing that you will notice when you start the game, are the amazing aesthetics. The colors, the shapes and the music merge together and create an amazing, unique experience. Each map has its own theme like forest, city and surrealism(?). So the mod is nicely varied. I…

Sep 15 2011 by Kiewi

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