The game that Stardew Valley blatantly copied - Harvest Moon: Friends of Mineral Town.

It was made for the GBA, so has straightforward and precise controls, with none of the irritating camera or targeting complications that come with making the game 3D.

There are other later games in the Harvest Moon franchise with better graphics, but like Stardew Valley with a gamepad, they tend to have irritatingly imprecise controls. Friends of Mineral Town, with its isometric 2D, doesn't have that problem.