Demonion: Demon King's Underground Fortress

Demonion is a hybrid strategy-adventure game where you play as Astaroth, a demon lord recently resurrected after two centuries of imprisonment. Weakened but determined to reclaim his former power, you must defend your underground labyrinth fortress against waves of adventurers sent to destroy you, capture and recruit female heroes to your cause, and eventually invade the human kingdom to overthrow Queen Darian who ordered your destruction. The game blends three gameplay modes: an adventure segment with branching story and intimate events, a tower-defense mechanic where you place traps and summon monsters to repel invaders, and a strategy layer where you lead your growing army to conquer enemy strongholds. As you gain power, stronger units and magical capabilities become available, allowing deeper progression into both the narrative and the kingdom's political landscape.