Diplomacy

[The Kaiz]

Is there anyway to make diplomacy impossible?

 

[Theta]

4 civs in a locked war against eachother?

 

[WilliamOfOrange]

This wouldn't stop contact, but you could disable the tech that allows diplomatic things like trading communications and establishing embassies.

 

[Keroro]

Make all leader names George W Bush?

No, but seriously, there's no way to make simple diplomacy impossible if you have more than four civs. You can disable the embasies in the editor on the civilization advances tab, and also disable map/comms trading and military alliances.

 

[CornPlanter]

In the Escape from Zombie Island scenario I could not contact Zombies while playing for Survivors.

Spoiler :

Zombies ate our envoy!