IL-2 Sturmovik: Battle of Stalingrad

Description
Battle of Stalingrad is an installment in the IL-2 Sturmovik series. It gives players an opportunity to take part in the most famous air battles of World War II, with emphasis on Operation Jupiter and the resulting Battle of Stalingrad.
The simulation portion aims to improve the realism with an expanded battlefield, new and more accurate aircraft-handling physics and aerodynamics, and new game elements such as VR support. Also new, among others, is an extensive in-game achievement system allowing players to unlock historically based airplane modifications and upgrades as the campaign progresses, and a Quick Mission mode allowing players to set up a custom combat scenario quickly.
Multiplayer mode is player controlled, allowing players to establish their own servers and implement their favorite settings for team battles and dogfight duels. Two players can also collaborate, with one piloting the plane or driving the tank and the other aiming and firing.
The ten airplanes used in this game are all recreated directly from the original drawings and blueprints, but can be modified to the player's liking using the aforementioned achievement system.