Eternal Siege

Eternal Siege is a 3D tower defense game inspired by the Ancient TD custom map from Age of Empires 2. You begin in the Ancient Greek era and defend your way through human eras, including Roman, medieval and modern times, toward the extinction era. New spells and upgrades become available as you progress, while the enemies also grow and change.

Manage resources

Min-max your resources and find an efficient upgrade path. As new resource systems unlock through the eras, you must transition to them efficiently.

Defend against the assault

Armies attack without wave timers or breaks, and keep coming until they take back the city. Upgrade your spells to complement your towers, keep pace with the waves or boost your income. Rare panic spells can buy time when you are falling behind, giving you a chance to catch up.