Developed by Tripwire Interactive. Ostfront 41-45 is a team-based multiplayer (online or LAN) FPS. The original Red Orchestra won Nvidia's "$1,000,000 Make Something Unreal" contest. Red Orchestra: Ostfront 41-45 is a standalone follow-up, built on Epic's Unreal Engine TM 2.5, that introduces new gameplay and features. Red Orchestra lets players choose from 28 infantry weapons or crew one of 14 different fully-realised vehicles on the Russian Front between 1941-45. The combination of roles across more than one dozen maps, based on real-world locations and battles, allows Red Orchestra to finally achieve its goal of delivering a full first-person, WWII combat simulation.