http://saljutin.dreamhosters.com/Strategy/username/password => test/test (or register)
Features:
+6 different resources (+1 if you include Power)
+10 different types of attack
+12 types of terrain
+14 units
+22 buildings
+30 technologies
+1002001 map size (1001x1001)
+ability to capture land
+ability to bomb/rocket target
+ability to move units anywhere on map (they can also stay there)
+ability to transfer infantry by APC or in bomber (as paratroopers)
+real time action (no turns)
This game has system like no other games, so it is unique and if you post your buy offer it should be reasonable. Also only game engine (that moves troops etc) has 2600+ lines of code.