Phones join with the 4 letters on the TV (or the QR code). Every kingdom gets a slice of the ring and a castle, with the king in his bathtub on the roof. Money comes in on its own. Keep your king alive. The map comes in four sizes (SMALL, MEDIUM, LARGE, HUGE): the bigger it is, the farther apart the castles and the longer the march. On RANDOM every war gets its own, and more kingdoms means a bigger one.
On your phone's map, tap any square that's your color. FARMS grow money. ARCHERS are fast (and a little drunk). CATAPULTS are slow and huge, reach castles from far off, and throw the dead before they throw rocks. BARRACKS send troops on their own. Tap a building to upgrade it (three levels) or sell it. Build your castle up and you get the INFIRMARY (medics patch up your troops and buildings), the BRICK LAYERS (masons fix things, the castle too) and the GIANT TOWER (it lets a big dumb ogre loose every so often).
The CASTLE tab on your phone: FIX THE WALLS ($40), or build it up from a KEEP to a CASTLE, a FORTRESS and a CITADEL. Every level is more wall, and every tower in your kingdom gets better: longbows, archers on the walls, flaming arrows, giant archers, boiling oil at the gate.
Pick who you're sending at (everybody, or one person) and spend: PEASANTS, KNIGHTS, RUNNERS (they go for farms), a BATTERING RAM (buildings only), a PLAGUE CART (dies into gunk). Sending makes your money come in a little faster for the rest of the war. Every road goes through the middle, so everybody's waves meet there.
GRANT (out of your catapult; he crawls to their king and gets in the tub), ANDREW (steals their weapons, punches your king), JENNY (yellow acid; she changes her mind), DAN and WILL (warriors; Will runs from ghosts), WILL'S MOM (the wizard).
HOLD THE ARMY and everything you send waits at a camp outside your gate; CHARGE lets them all loose at once. The TALK tab: offer PEACE (a truce for a minute), DEMAND gold, land or men (paying buys a truce, refusing makes them hit you harder), or GANG UP with somebody on a third king. Any deal can be BETRAYED: a stab in the back hits hard, but you're an oathbreaker for the rest of the war.
Your troops stain the ground they stand on, and land that's been stood on long enough turns your color. Build there. Get a catapult close enough and it hits their castle on its own.
At 5:00 it's SUDDEN DEATH: every king starts dying of old age, faster and faster, and nothing can fix a castle anymore. A king who falls comes back as a ghost and keeps sending the dead. Last king standing wins the war. One war, or best of three.