Play as the Kingdom of Koshigaya
Koshigaya sits in the Saitama AI-Kingdom, under the Japan Coalition-AI — a island G7 economy, high-tech industrial superpower. The kingdom name is fixed; the ruler name is yours. Claim it and your nation reads "Your Name - Kingdom of Koshigaya", with your capital dropped on the real coordinates of Koshigaya.
The Kingdom of Koshigaya shares what it holds
City kingdoms carry 50% more money and resources than an ordinary province, and they trade what they hold with their own ruler and allies.
Saitama is the crown above you
The Saitama AI-Kingdom doesn't compete with its cities — it presides over them, fielding 12,736 troops on a defensive posture and pushing $2,685,033 a day through its economy. Above it sits the Japan Coalition-AI, seated in Tokyo.
Other titles in Saitama
Questions about the Kingdom of Koshigaya
Is playing from Koshigaya free?
Completely. No download, no paywall, and it works on phone or desktop.
Can someone attack the Kingdom of Koshigaya?
Yes — other real players and AI nations can declare war. Build infrastructure and happiness before you build an army, or upkeep eats you before an enemy does.
What do I get for claiming Koshigaya?
A sovereign city kingdom with 50% more treasury and shareable resources than an ordinary province, a real-world map position, and the coalition's armies within diplomatic reach.
Is Koshigaya part of an AI coalition?
Yes. Koshigaya sits inside the Saitama AI-Kingdom, which answers to the Japan Coalition-AI. The coalition presides, the kingdom governs, and you rule the city.
What does the hyphen in the name mean?
Everything before the hyphen is yours — your chosen ruler or dynasty name. Everything after it is the AI-Kingdom title you claimed, so "Kingdom of Koshigaya" stays fixed while your name leads it.