Are you making an idiot out of yourself on purpose? Have you read my very first message in this thread? Do you understand that 3D and 3D game are different terms? While 3D can mean anything, a 3D game has one specific meaning that is clear to everyone. Everyone except you, apparently.
A three-dimensional computer game (3D, English three-dimensional) is a game, a visual space that is entirely built from three-dimensional objects. The character is in three-dimensional space and in some games has complete freedom of movement. The first 3D game was Maze War (1973).
Three-dimensional games are fundamentally different from two-dimensional (2D) games, in which the game space consists of ready-made flat images - either hand-drawn or created by an artist in a three-dimensional modeling environment and then saved as ordinary images. The computer's task here is reduced only to combining these images in accordance with the game algorithms, which explains the low requirements of two-dimensional games for computer power. The freedom of movement of a character in two-dimensional games is limited: he can only move along the route provided by the developers.
Intermediate options between 2D and 3D are possible. Sometimes the term 2.5D is used for them.
- The game space is three-dimensional, but the models of game objects - buildings, plants, characters - are flat pictures, sprites. An example is early 3D games such as Wolfenstein 3D and Doom. In modern 3D games, sprites are used only to display objects that are present in very large quantities (for example, grass and trees), as well as objects that are located at a great distance from the character. This is done to save computer computing resources: for example, modeling a completely three-dimensional tree with thousands of leaves is a very difficult task for a computer, and modeling an entire forest is an impossible task, and it is impossible to do without sprites.
- The game space is two-dimensional, but the character models are three-dimensional. This technology is used in many quests. It allows you to combine high-quality two-dimensional hand-drawn backgrounds (usually partially animated) with “live” freely moving characters and at the same time does not require computer power. A striking example of such a game is Syberia.