IL-2 Sturmovik Description:

Soaring through deadly realistic 3D landscapes, pilots can engage in numerous action-packed single-play missions involving air-to-air, air-to-ground, search & destroy and escort missions. In addition, IL-2 allows 32 human opponents to join multiplayer missions online or via LAN to engage in what GameSpot promises #could turn out to be the best-looking World War II flight sim to date.