Adapt: 3D to 2D

Expert guidance for simplifying 3D games into 2D (or 2.5D).

NEVER Do

• NEVER remove Z-axis without gameplay compensation — Blindly flattening 3D to 2D removes spatial strategy. Add other depth mechanics (layers, jump height variations).
• NEVER keep 3D collision shapes — Use simpler 2D shapes (CapsuleShape2D, RectangleShape2D). 3D shapes don't convert automatically.
• NEVER use orthographic Camera3D as "2D mode" — Use actual Camera2D for proper 2D rendering pipeline and performance.
• NEVER assume automatic performance gain — Poorly optimized 2D (too many draw calls, large sprite sheets) can be slower than optimized 3D.
• NEVER forget to adjust gravity — 3D gravity is Vector3(0, -9.8, 0). 2D gravity is float (980 pixels/s²). Scale appropriately.

Available Scripts

MANDATORY: Read the appropriate script before implementing the corresponding pattern.