Harvest Moon 3D: The Lost Valley is a Nintendo 3DS farming RPG from Natsume. This entry shifts the series into a fully 3D farm-building setup with terrain customization built around digging, stacking, and construction.

• Cleaned, tested, and guaranteed to play. Authentic cartridge.
• Original online services for this game or platform have been discontinued; any offline or local modes still work normally.
• Shape the farm layout directly by changing the land and building in a 3D environment.
• Play as either a boy or a girl while developing relationships with bachelor and bachelorette characters.
• The life-sim structure includes marriage and starting a family alongside farming progression.
• The game supports stereoscopic 3D mode on Nintendo 3DS hardware for players ages 7 and up.

The Lost Valley is positioned as a “new evolution” of Harvest Moon, emphasizing hands-on farm customization rather than only fixed-field crop management.