The deck
You start with an army, a village and a market, nothing more. Every 2 min 30 a new slot opens, and you choose one evolution out of three: attack, defence or economy. It applies at once over your whole land, and the game never stops while you choose.
Twelve evolutions
Archer towers, fortifications, tolls, cavalry, fierce peasants and more, four to a game. Economy beats defence, defence beats attack, attack beats economy. The 25 and 50 % troops, the warships and the strikes leave the game.
Twenty minutes
A game lasts 20 minutes at most, and the largest land wins when time runs out. Holding 80 % of the map still wins earlier.
Play with no internet
A pack run on a computer or an Android phone serves the game over the local network. The other players only need a browser.
A game's address
An online game keeps its room's address to the end, and reloading the page takes your seat back.