Hosting a simple LAN game? Noob question.

[lch]

Click "Network"
Click "Setup a Dominions server"
Enter some number, for example 3214
Enter some name, for example Langame
Select Age
Configure AIs
Connect to the server with the clients (with your IP address). The host has to launch another instance of the game and connect to itself, too.
Complete game setup.
Play.

[CurseUppl]

Ohh, that makes sense. Thank you =)

[lch]

Furthermore, you need to have some pretenders created on the clients. This is done via Game Tools -> Create Pretender God.
You can then assign the gods to the nations when you connect.