DIONE

Released in December 1987 by Hudson Soft for the PC-8801, *Dione* is a sci-fi strategy game that places players in command of the armored mobile base "Dione." Set in the year 2195, the narrative follows Earth’s desperate counterattack against a mysterious machine army using advanced mecha units. The game distinguishes itself by allowing players to customize their assault battalion with various units, each with unique tactical costs. As a 1980s retro title, it stands as a significant example of the era's focus on complex, menu-driven command simulations on Japanese personal computers.

In the year 2195, reconnaissance satellites detect ten mysterious meteorites impacting Earth, marking the beginning of an unprecedented crisis. When initial Earth Federation investigation units are deployed to the sites, they are met with a devastating assault from an unknown mechanized army that leaves the military in shambles. Facing total annihilation, the government authorizes an emergency counter-offensive, commissioning a heavy assault battalion centered around the specialized armored mothership, Dione. Equipped with the latest cutting-edge "Mobile Armor" combat units, it is up to this task force to engage the invading mechanical legion and secure the future of the planet.