Allegiance 2.1 build 165 Free Full Game

No commercial CD is required
Originally released by Microsoft on March 31st, 2000, Allegiance is now a free online 3D space combat game. You pilot spacecraft, flying in a team with other players, defending and attacking sectors in space. Your team is led by a commander, who makes tactical decisions and invests in technology and bases. Flight and combat is done in first person view in a 3D environment, with a real-time, top-down view of your immediate surroundings available to aid you in navigating and making quick tactical decisions. This version includes everything you need to get up and running, except for Microsoft's .NET framework v1.1 which is required. Click here to create a gameplay account.