Downloading DARPA ACTUV Game 1.0 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. DARPA ACTUV Game lies within Games, more precisely Simulation. This free software is a product of Sonalysts Combat Simulations. We recommend checking the downloaded files with any free antivirus.
From the developer:
You are invited to put yourself into the virtual driver’s seat of one of several ACTUV configurations and show the world how you can use its capabilities to follow a submarine. Of course you won’t be the only ship at sea so you’ll have to safely navigate among the commercial traffic, and the target sub has some tricks up his sleeve so watch out!
You may want to check out more software, such as IMAKEMADBEATS THE GAME, Mz Game Accelerator or GAMS, which might be similar to DARPA ACTUV Game.