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Cities increase troop capacity. Under standard settings, your first City costs 125,000 gold.

Coastal Ports generate trade-ship routes and enable Warship construction; blocked trade can interrupt their economic value.

Factories support railway networks. Trains earn gold at eligible City and Port stops; Factory stops themselves do not pay trade income.

Nearby borders gain defensive protection. Under standard settings, your first Defense Post costs 50,000 gold.

The attack slider selects 1% to 100% of your available troops for an attack, not a percentage of your maximum capacity.

Combat calculations account for attacking troops, the defender's army and territory, terrain, and nearby Defense Posts.

Manually cancelling a land attack against an opponent loses 25% of the troops remaining in that attack.

Troops committed to an attack are deducted from your available army, so large simultaneous attacks leave fewer troops at home.

These smaller-area nuclear strikes launch from Missile Silos and destroy territory and structures around the impact point.

A Hydrogen Bomb has a much wider blast than an Atom Bomb, so check nearby allied territory before choosing a target.

A MIRV separates into multiple warheads aimed across the selected opponent's territory.

SAMs intercept hostile nuclear missiles within their effective coverage. Upgrading a launcher expands its interception range.

Chokepoints make border agreements and the timing of an attack important parts of expansion.

Large open areas create opportunities for rapid expansion and require attention to exposed borders.

Ocean routes add long-distance naval threats and opportunities beyond your immediate land neighbors.

Check whether the lobby uses manual or random spawning; manual selection remains adjustable until the spawn timer expires.

With water access, send troops to another coastline through the boat action; transport boats are not combat Warships.

Warships patrol assigned waters and engage hostile transport boats and Warships.

Warships can capture eligible enemy trade ships instead of simply sinking them.

Damaged Warships can retreat to a reachable owned Port. Port level determines how many Warships can dock for repairs.

An accepted alliance prevents direct attacks between its members while it remains active.

Allies can donate troops and gold, and use target markers to coordinate attacks.

The standard alliance duration is 5 minutes. Custom lobbies can change the duration, so watch the active timer.

Betraying an ally who is not already a traitor normally applies a 50% defense penalty for 30 seconds.

1 selects City, 2 Factory, 3 Port, 4 Defense Post, 5 Missile Silo, and 6 SAM Launcher.

7 selects Warship, 8 Atom Bomb, 9 Hydrogen Bomb, and 0 MIRV.

G triggers a ground attack, B a boat attack, T lowers the attack ratio, and Y raises it.

WASD moves the camera, Q zooms out, E zooms in, and C centers the camera on your territory.

Hold Shift and drag to box-select Warships; F selects all your Warships.