works great thanks for igg-games. to anyone having problem like I did, do the following:
1-install the game
2-go to ( http://graviteam.com/games/GTOS.html?action=downloads ) and install all the updates and then apply them in order (Core, then patch, then Polygons)
3-install 1 dlc at a time then click (save and play) repeat for all the dlc

Please Help Me. The DLC does not work, every time it crashes. This include Operation Hooper, Shield of Prophet and Zhalanashkol 1969 ?

cant install the dlc. description missing or something. bad release.

This include Operation Hooper, Shield of Prophet and Zhalanashkol 1969 ?