Tripwire Interactive has put on a great offer on its multiplayer World War II shooter Red Orchestra 2: Heroes of Stalingrad. It will be free to download today on Steam and the deal will go on for the next 24hours. The deal is basically but to target the players who have not been very much involved with the game or were earlier not interested in setting foot into it. So, go and download it and spread the word. The download allows you to keep the game forever.