Years ago, I wrote an AI script for StarCraft. My friends and I enjoyed playing on money maps against large numbers of computer players, but were frustrated with how unchallenging the base game’s AI was on those maps. Thus, Dark AI was born. It was polished and tweaked and tested over years (very intermittently), and I’ve kept it up to date with each new version of StarCraft since then. It is extremely challenging, and it cheats like crazy. It is specifically designed for money maps, and I would not recommend playing against it in a regular game.
Today I have set it up with a page on Google Project Hosting, where my other open source stuff resides.