This is both the demo and the full version of the latest official version of the game. Players who wish to unlock the full version from the demo can purchase a license key from ArcenGames.com or any of AI War's online distributors (Steam, Impulse, Direct2Drive, GamersGate, etc.)
AI War 5.0
Arriving alongside the LotS expansion is AI War 5.0, a massive update free to owners of the base game. Version 5.0 refines the title by taking the best of all past versions and blending them into the definitive AI War experience. While the game will continue to grow and evolve, 5.0 now serves as the foundation for the future.
With this update, nearly every combat ship in the game has been rebalanced in an effort to integrate all the new units added over the past year. Golems have been completely revamped and the AI have received major intelligence upgrades such as more proactive retreats, a network of core shield generators, and the new "stalking" mechanic where it lies in wait until the player is at their most vulnerable.
Players should also be pleased with significant adjustments to overall difficulty and the shortening of the early part of the game -- allowing you to "get to the good part" faster. Not to mention tons of performance improvements, as well as more of a general accessibility regardless of what level of player you are.
Interested parties can read all the additions, improvements and changes in massive detail here: Arcengames.com