The story of SD Gundam Generation D: Babylonia Kenkoku Senki takes place in a fictional world where multiple warring factions are vying for power. The player must control their chosen faction's commander, guiding them through a series of battles to conquer the land and ultimately declare victory.
The gameplay involves strategic planning and execution, as the player must manage resources, build and maintain units, and make tactical decisions on the battlefield. Each faction has its unique abilities and strengths, adding depth to the game's strategy.