AI War:AI War

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AI War:Fleet Command

AI War: Fleet Command is the flagship video game of Arcen Games, first released in 2009. Up to eight players battle a pair of rampant artificial intelligences once used by warring human superpowers, in the aftermath of the AI's near complete victory over humanity. Human players must avoid the notice of AI powers while preparing for an attack against the AI homeworlds. The game takes place on a procedurally generated galaxy map with between 10 and 120 planets in a genre splicing mix of Real-Time Strategy, 4X, and Tower Defense.

AI War is known for its gameplay depth, the behavior of its AI opponents, and strong ties between fans and creators.

Upcoming and latest patch-notes.

More About

AI War: Fleet Command is a space-based RTS with incredible AI and the largest number of units (30,000+ in most games) of any game we know of. Up to eight players team up against two deadly AI civilizations in lengthy, multi-session campaigns spanning a 10-120 planet galaxy map. Over 120 hours of content means there is always something new to discover. Whether you're a newbie or a genre veteran when it comes to RTS, you'll discover something startlingly new and fun when you and your friends start executing coordinated attacks with thousands of ships!

  • Cooperative RTS game (1-8 players) with numerous unique ship types.
  • Challenging AI in 26 styles, 20 additional with the first two expansions; many with unique superweapons.
  • Insanely high unit counts: 30,000+ ships in most games.
  • Lengthy campaigns featuring up to 120 simultaneous planetary battlefields.
  • Different Every Time: 16 billion procedural maps, each with specific units.
  • A focus on deep strategy that you don't get in most RTS games.

Game Setup


Players can refer to in-game objective list (accessed through "Message Log") which is dynamically updated during play.


Ship mechanisms

AI Mechanisms





Shared Units

Human Units

AI Units


  • Humanity: only playable race in AI War, mankind was nearly exterminated by the AI and is now seeking an opportunity to land a deadly strike at its opponent.
  • The AI: seemingly created by Humans during their civil war, the AI now seems preoccupied in another galaxy with grander design than Human's remains extermination.
  • Zenith: eons old alien race only represented by its technological remains and scattered beings.
  • Neinzul: insectoid aliens of eternal children with extremely short life span.
  • Spire: mineral alien specie whose empire sprawl many distant galaxies.


AI War has six expansions which variously include additional units, critical paths, AI types, lore, and music. The game is in ongoing development and receives regular bug fixes and balance adjustments based on community feedback. Major version updates typically coincide with new expansions and sometimes fold improvements from expansion development into the base game.


The links below were part of the old version of this central page. They are very useful and interesting but may be outdated.


General Gameplay

Multiplayer Co-Op


Game Setup





Ship-Specific Game Mechanics

Ship Strategies & Errata

In an average game, the player's navy revolves around groups of fleet ships supplemented by starships and support vessels. A comprehensive ship compendium is being added, of which you can currently begin browsing by visiting the basic triangle ships: Fighters, Bombers, and Missile Frigates.


Higher Difficulties Only

Design Philosophy

Who Worked On This Game?

Bear in mind the in-game credits are a more full list of everyone involved. But:



Player-Created Strategy Resources

Release History

Please note that there are generally prerelease beta versions available at any given time of the year, and there have been literally hundreds of those in between all of the official releases noted below.

Technical Support