2.5D - Wikipedia

2.5D (basic pronunciation two-and-a-half dimensional) perspective refers to gameplay or movement in a video game or virtual reality environment that is restricted to a two-dimensional (2D) plane with little or no access to a third dimension in a space that otherwise appears to be three-dimensional and is often simulated and rendered in a 3D digital environment. This is similar but different from p

[tvsk]

Three quarter view = 2.5 D view ゲーム開発における歴史的経緯。