Not to hijack the thread, but needing help refreshing my memory. In the early 2000s, the WWII multiplayer flightsim landscape consisted of the following:
Air Warrior (Kesmai, later Electronic Arts, who bought it and then shut it down)
WarBirds (iEN)
Aces High (HitechCreations)
Fighter Ace, Combat Flight Simulator 3 (Microsoft)
IL-2 Sturmovik (UbiSoft)
WWII Online (Playnet Cornered Rat Software)
Today, we have:
Aces High III (HiitechCreations)
IL-2 Great Battles series (1C Game Studios)
DCS: WWII (Eagle Dynamics)
War Thunder (Gaijin)
World of Warplanes (Wargaing.net)
Is that about right?