I want to know if the character of limbo 2d or 3d and the backgrounds

pls answer fast

Yes

As far as I know the game it is completely 2D. The game has multiple layers stacked on each other containing normal 2D sprites.

The game Inside, made by the same developers, uses 3D objects. If you take a look at a couple of screenshots comparing both games you can clearly see the difference.

On 12/2/2018 at 5:09 AM, Ahmed Elsayed said:

I want to know if the character of limbo 2d or 3d and the backgrounds

Limbo is purely 2D, but the sequel INSIDE is 3D.

There's a great presentation on the rendering of INSIDE if you are interested.

That was a ' great presentation on the rendering of INSIDE' cheers

Some articulated characters in Limbo are definitely done with sprite meshes (subdivided flat meshes with a transparent textures that can be deformed to animate the character, like using Spine, Moho or Live2D Cubism), plus there's lots of layers and shader effects (lots of blurring, glows).
So it's not 3D in terms of camera angles, but it's definitely using 3D technology for rendering. So I'd consider Limbo as 2.5D.