A game made by Silmarils in '93. Kind of post-apo story, in which humanity used nuclear winter to fight global warming, only to miscalculate something and starting artificial glacial period. Now it's 25th century and your goal is to find a way to break the clouds covering Earth, so the climate may warm. Of course the mega-corp which is supplying all the remaining human settlements is your main opponent.
The game was an exotic mix of economic, adventure and simple battle simulator genres. If I recall corectly, it's now abandonware. To be honest, the setting is far more interesting than the actual gameplay, which mostly consist of trading. If you know how to finish it, it can take you less than two hours. If not - have fun for few days or even weeks