Arma 3's closed alpha will be a simple matter of slappin' down some virtually-represented cash stacks, once the test goes live next Tuesday, March 5. Available through Steam, the alpha will include four missions, a "limited subset of vehicles and weapons," two multiplayer maps, a Scenario Editor and mod support.
The size of the requisite cash stack varies depending on which version of the alpha you buy: A standard version for $33 or a Digital Deluxe Edition for $50. The Deluxe Edition features a soundtrack, "digital maps," a "tactical guide" and a Steam copy of Arma: Cold War Assault, all of which will become available when the full version of the game launches in Q3.
There will also be a $92 Supporter Edition available directly from the developer's online store, which includes all of the Deluxe Edition bonuses, as well as all future Arma 3 DLC and the "opportunity" to have your name in the credits, whatever that means.
All three versions include automatic access to the Arma 3 beta test slated to start in Q2, as well as a copy of the full game when it eventually comes out. Players who purchase access to the alpha can also invite their friends to participate in an even more limited "Lite" version of the test, which does not include multiplayer or modding support.