A bubble shooter dressed as a campaign of conquest: match the colours, gather the resources and push the army across the map.
Fly a fighter through eight missions of aerial combat, picking the plane and the loadout before every sortie.
Drive an armoured train through ten missions of rail combat, unlocking new engines, guns and maps as the campaign opens up.
One cannon against a horizon of tanks and infantry: hold the line, count your cash and buy the gun that stops the next wave.
Run the stork factory in a blimp above the clouds: prepare the babies, crew the delivery storks and keep every town supplied.