The game is 15 missions long and it takes longer and longer for each consecutive mission starting from about 30 mins. Bear in mind switching between turn based and real time is a very big change in the game. I have completed the game turn based and it turned into a purely 100 % strategical game which I enjoyed many years ago. Now I am replaying the game in real time mode ( actually swithicng to turn based for extreme parts of missions) and the game is entirely different to play. Game takes maybe 100 hours to play in the setting you are comfortable in , tho for higher difficulty setting the game goes to 200/300 hours depending on the use of Tought guy mode. Not a very forgiving game , yet interesting because of the obsticles. Side note: Has anybody completed the game on tough guy mode insane difficulty or ever heard of somebody doing it ? I am interested in people who might have completed the feat.