I don't know if it's forgotten, but it's forgotten to me. There was this ant game where you had a colony of ants that would go collect food, or attack other colonies. There was this very pixelated top-down map view where you could see the brightly colored food disappear pixel by pixel as they ate.
I can't figure out what the game was but I loved it.
Nope, the other commenter got it. It was Microsoft Ants. Sim Ant is what most people guess when I have brought this one up before though. I'll have to try it sometime.