[Fyron]

If you can even make neutral AI empires...

You can make them yourself easily. Start a new game, and have no normal AI empires, just neutrals. Set number of AI players to high, set racial points to whatever you want. Add an empire for human players. Then, hit start game. After it is started, go to the Options menu, then Players. Toggle all AIs to human control (the only option in there). Hit end turn. Save empire file of AI one, and so on.

You can do this for regular AI empires fine, but I am not sure if you can even have empire files for neutrals. You can not select a "neutral race" shipset when creating an empire...