Based on the Unreal mod, Red Orchestra is a realistic World War II first-person multiplayer shooter.
The game includes thirteen maps from Stalingrad to Ukrainian steppes to the last days of Berlin. The map sizes vary so that some maps only have a few tanks while others can have up to ten. Equipment and character classes also differ depending on era. Each side has set character classes, so most players need to be content with playing a normal soldier.
Red Orchestra has been designed to be as real as possible. There are no aiming markers; the players have to use the iron sights. There are also no markers to identify friend from foe: the only way to tell is to look at their uniforms. There are also no ammo meters. The realism goes so far that the player actually has to pull out the empty cartridge after firing a bolt-action rifle. Even suppressive fire is useful as bullets going near make shooting more difficult.
There is a total of 28 infantry weapons and 14 different vehicles, each realistically modeled.
The developers entered the Make Something Unreal Contest with the game, organized by nVidia and Epic, and they won free Unreal 2.5 and 3.0 licenses as a grand prize. This allowed them to develop and distribute a standalone version of the game, released on 14th March 2006.
In the German version, cut off limbs after explosions were removed.