The open beta test for Microsoft's Fighter Ace, developed by VR-1, has begun.
"Additional testers are being sought to stress-test the Fighter Ace servers and give comments that will help the development team make the final tweaks necessary before the game goes live this winter," the company said in a press release.
The World War II aerial dogfighting game is playable over Microsoft's Internet Gaming Zone.
When the game goes live, it will allow 100 or more players to dogfight in the same arena.