[Slick]

You have probably reached Mega Evil Empire status.

From the FAQ:

13.1 Mega Evil Empire (MEE)
13.1.1 Settings.txt governs if & how MEE is used. Basically, if used, this system tries to limit an empire from running away quickly and winning the game. If a player is declared MEE, all AI’s will declare war on that player. A human or an AI can be the MEE. It does this by comparing the #1 player’s score with an absolute value and to the #2 player’s score. With default values, a human player becomes MEE when his score is 500k and is 170% of the next highest player. It is a little more forgiving on AI’s since they won’t be MEE until their score is 250% of the #2 player. New players are sometimes unaware of this and can’t understand why a game is going great and then suddenly the whole galaxy appears to turn on him. This is why.

Slick.