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The add-on to Act of War: Direct Action takes you back in the war against terrorism.

The main new feature of the game are battles on sea. Each faction has access to different ships and even submarines. You can also hire mercenaries which help you to defeat your enemy in the new single-player campaign and on the 25 new multiplayer maps...but only if you pay enough of course.

There are also two new multiplayer modes: Marine One down and SCUD-Hunt.

In Marine One down it is your goal to get the president to the evacuation-zone. The last player who was near the president can control him. Were in SCUD-Hunt you need to get your hands on a SCUD-thrower. If you posses it you have access to your super-weapons.

The add-on also features 50 new units and upgrades for all sides as well as better graphics, a better AI, new multiplayer options and several other minor changes.


Act of War: High Treason Windows Bombing enemy tanks with Multi-Launching-Rocket-System trucks from a safe distance
Act of War: High Treason Windows Buggies upgraded with rocket launchers can take down an enemy helicopter with a single strike
Act of War: High Treason Windows A futile attempt to approach enemy base, no matter all the units are veteran
Act of War: High Treason Windows Clearing the roofs of enemy presence

Promo Images

Act of War: High Treason Screenshot
Act of War: High Treason Screenshot
Act of War: High Treason Screenshot
Act of War: High Treason Screenshot


Alternate Titles

  • "战争行为:严重叛国" -- Simplified Chinese spelling
  • "Act of War: Государственная измена" -- Russian spelling
  • "Act of War: Manhattan Treason" -- Working title

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Critic Reviews Jun 26, 2006 90 out of 100 90
PC Powerplay Mar 29, 2006 86 out of 100 86
GameStar (Germany) Apr, 2006 80 out of 100 80 Apr 06, 2006 80 out of 100 80 Apr 13, 2006 76 out of 100 76 Dec 11, 2006 7.2 out of 10 72
GamesFire May 31, 2006 71 out of 100 71
1UP May 31, 2006 7 out of 10 70
PC Action May 11, 2006 60 out of 100 60
PC Games (Germany) May 01, 2006 57 out of 100 57


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Sicarius (61583) added Act of War: High Treason (Windows) on Jun 16, 2006