Earth 2150 Trilogy

I checked this page just to find if there are other similar games, but I don't see anything like that in the section on the bottom, unfortunately. And even though Earth 2150 is one of the worst RTS games ever made it's worth mentioning that there is a much more enjoyable game Warzone 2100 which uses similar mechanics for units development but unlike in this game it's done in an intelligent and very fun way and you will never get bored in that game. I really wish there was a better way for finding similar games.