After listening to players suggustions,i decided to change the research system With older research system,players found it very time consuming and difficult to maintain steady flow of research points, because they need to change thier production lines a lot, and they have to wait for hours to collect research points. New research system will be as follows - Items will have a fixed research value during the game "no more research points decay" - Item research value will directky depend on item complexity,more complex means more reward. The older research system could be added later as a seperate mode for the players who like to grind and spend time collecting hard earned research points. This update is compatible with older saved game,you dont have to start new game to try it. Thanks for everyone who gives a feedbak to make the game more fun :)