Did you play the game "Perimeter"?
http://games.1c.ru/perimeter/eng/game.html
Oh yeah.... Perimeter is a great game. The terraforming and the unit transmutation were really cool. I never got tired of raising the shields on my base either. Very cool.
As for similarities with CW, the economic models in Perimeter, Harvest:Massive Encounter, The Space Game, Moonbase Commander, and Creeper World are fairly commonly compared to each other. Their models are similar to each other in that the resource is 'space' (or space related), not necessarily ore/gold/tiberium/oil,metal, etc. You still get stuff in Harvest and TSG, but you do so with your network that you keep expanding.
oooh i really enjoy TSG, and tiberium isnt that from the mmorpg space game chosen?
tiberium is from the rts command and conquer series
oh yeah, wasnt a big C&C buff, only played generals a few times on multiplayer