Lord of Starfall

The continent is called [Aesera], where magic and alchemy coexist, but the border area [Greystone Territory] has been destroyed by years of beast tides and turned into a wasteland. Monsters continue to pour out of the cracks in the abyss, and the Kingdom Center is unable to take care of it. The territory is autonomous and fends for itself. Power system: Source energy (system currency, obtained by killing monsters/completing construction tasks) → exchange for blueprints/acceleration/upgrades.