Trying to find this older game...

There was this RTS game based on magic and summoning back in 2001-ish. You walked up to a series of six doors representing six different "gods". (One of them was an earthworm.) You did a series of RTS missions on the main campaign where you chose which God, each round, to serve. After the mission, you got a new spell based on the domain of the god you just served.

What was this game? Anyone?

Edit: AND... as soon as I ask, I remember. SACRIFICE from 2001. Right. Nevermind.