Rules:
1. Each kingdom has a king, only the king decides whether to accept or break alliances or to sign a peace treaty to end the game
2. There is a maximum of three players per kingdom
3. You may only cross water at a sea route/bridge
Attacking
To attack just say "[My country] attacks [adjacent country]". I'll take care of the rest. You get 2 attacks per day.
The number of territories you get depends on the number resulted by a roll (I'm doing this with a dice XD)
If you roll 1-3 you get 5 territories
If you roll 4-6 you get 10 territories
If you roll 7-9 you get 15 territories
If you roll 10 you get 20 territories
Alliances
One kingdom can form a regular alliance with only another kingdom.
Seasons
Every three updates (rounds), the season will change in Tamriel.
The seasons are:
Winter
Spring
Summer
Fall
The different seasons are explained on the map
Daedra
During fall, an Oblivion gate will be opened every update and will continue to grow until surrounded completely and pushed back.
If not closed, the gate will continue to push out daedric forces and take land.
Gates might still open at random, even if it's not fall.
Capital
Every kingdom has a capital. Once surrounded it is considered captured. If your capital is captured every enemy attack will get 3 more territories.
Here's the map:
Approximate number of territories:
Solstheim - 50
High Rock - 188
Morrowind - 310
Cyrodiil - 419
Summerset Isle - 211
Hammerfell - 322
Elsweyr - 279
Valenwood - 285
Skyrim - 306
Argonia - 267
Cyrodiil attack Morrowind
It is also currently summer so all attacks gain 2 more territories.