November 9, 2027.

City 12 is about to be free once more.

  • The resistance is operating openly and is rapidly regaining influence.
  • The Civil Protection is increasingly corrupt.
  • Anti-combine television broadcasts are tolerated.

To avoid a full uprising, the Combine has agreed to formally restore human rights in City 12 and allow limited human self-governing. The treaty will be signed in just a few days. There's doubt the treaty will actually be signed. To put more pressure on the Combine, the resistance is about to assault key civil protection stations in the downtown area. Freeman unexpectedly arrives in City 12. Unsure what to do with him, they ask him to lead the assault on Sector V.

Altered Transmission is a single player mod for Half-Life 2: Episode Two. You need to install Source SDK Base 2013 Singleplayer from Steam's Tools tab as well as Half-Life 2: Episode Two. See README.txt for installation instructions. City 12 is loosely based on Århus, Denmark and many locations are based on the real world.

This is Demo 10, a development snapshot of Altered Transmission. The mod is not finished and probably never will be as I was too ambitious and it is too much work realizing my vision for it. Nonetheless, with a strong focus on gameplay, all the neccesary maps have been made and the mod is fully playable from start to finish. There's no voice acting, but the story is told through subtle environment details. A few maps are still have rough graphics, but they are all playable. Please ignore any obviously unfinished aspects of the mod.

This is as gameplay test. I'd really like to know what you think of it. There's lots of ways you can give me feedback:

  • Leave a review in the comments.
  • Add sortie as friend on Steam and interactively tell me while you play.
  • Record demo files in the engine that I can play back.
  • Publish a Let's Play of the mod.
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C12-DOC-003253 Chapter 1: Prewaves Chapter 1: Prewaves
Blog RSS Feed Post news Report abuse Latest News: Altered Transmission - Demo 10 - Release

5 comments by Sortie on Jun 23rd, 2015

Good evening,

I've just uploaded Demo 10 of Altered Transmission. This is a fully playable gameplay test of my mod still in development. This release contains all 18 gameplay maps, while lacking 2 story maps of rebel bases. This is the first release to fully connect the mod together. The graphics and gameplay has been considerably improved. This is definitely the best release to date. I hope you'll enjoy it too.

Altered Transmission - Demo 10

Demo 10 was originally scheduled for release in June 2009. After learning some harsh lessons about how not to do release engineering, and my attention being better used elsewhere, I never made the release. That was unfortunate as I had a lot of great unreleased content. It is with much pride and satisfaction of my personal pride that the release was delayed by no more than six years.

Chapter 1: Prewaves Chapter 1: Prewaves

I put up a 7z of the mod directory as a moddb download. There's an advertisement as you download, but moddb doesn't seem to do anything nasty to downloads so that's great. If you'd much prefer downloading it elsewhere, let me know. I'm not sure how mods are best released these days.

Chapter 1: Prewaves Chapter 1: Prewaves

As always, the mod is perfectly playable as I put gameplay and level design design first. There's no voice acting yet, but lots of implicit story telling. Please provide me with your feedback so I can improve the mod, or just feel the appreciation. I put a lot of work into this.

I hope you enjoy it!

Jonas 'Sortie' Termansen

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Altered Transmission - Demo 10

Altered Transmission - Demo 10

Jun 23, 2015 Full Version 5 comments

Altered Transmission - Demo 10 development snapshot release as of 2015-06-10.

Post comment Comments  (0 - 10 of 67)
Cyber.Shadow Jun 25 2015, 2:46am says:

played Demo 10 and enjoyed it A LOT!

Thank you for this fine piece of work.
Looking forward to the finished product with more zombies, Combine and such.
Really liked the aid of the resistance throughout the maps and levels.
I'm giving your Demo 10 a 9/10!

+2 votes     reply to comment
Cyber.Shadow Jun 24 2015, 5:13pm says:

Downloaded and about to start playing your demo

+1 vote     reply to comment
flippedoutkyrii Jul 12 2014, 10:04pm says:

Hey man, it's been a long time, any progress? :)

+1 vote     reply to comment
Sortie Creator
Sortie Jun 23 2015, 4:34pm replied:

I just published Demo 10. :-)

+2 votes   reply to comment
csderr Jan 8 2012, 9:28pm says:

I could not D/L either file & get them installed, both seem corrupted. The notation above says "Released Dec 22, 2011". Is this true?

+1 vote     reply to comment
Sortie Creator
Sortie Feb 2 2012, 9:07am replied:

Hello. The latest beta (AT9) has been released for a while. You can fetch it from the website at In any case, I had hoped to get the newest beta (AT10) out in time for Christmas, but it wasn't stable enough. I'll get it out sooner or later, when I have some time: currently AT10 is mostly done.

+1 vote   reply to comment
0takumetalhead Jan 6 2012, 12:50am says:

Tracking this mod, looks interesting.

+1 vote     reply to comment
Sortie Creator
Sortie Dec 24 2011, 8:14pm says:

I had hoped I'd get the newest release done in time for Christmas. Sorry, I didn't make it!

Although, the good news is that I managed to port most of the content, and only the last chapter and a map or two is missing. So perhaps I'll make new years.

+1 vote   reply to comment
csderr Jan 19 2012, 5:22pm replied:

OK, the D/L happened & it's installed. Tried to play it but was overwhelmed by the RIDICULOUS amount of Antlions. Now I love a challenge, but too much is an understatement! What is it with Modders, anyway? Is the whole premise one of 'And now you die, scumbag!'
On the whole, though, it is an enjoyable romp through City 12, or wherever.

+1 vote     reply to comment
flippedoutkyrii Dec 16 2011, 9:19pm says:

Looking forward to the next Demo! :D

+1 vote     reply to comment
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Released Jun 23, 2015
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