Engines/development tools for first person games

[Robinvk]

Hello everyone,
I need to make a First Person game for a project and I was hoping you could suggest libraries/engines/development tools for this that fit my limitations&requirements.

The game I need to make requires the following:
- 3D environments with 3D movement (I prefer real 3D with actual models, but using sprites like in

[codist]

Take a look at DirectX or OpenGL. You can always use google. Just look up "3d game engine". If you need some help in OpenGL, I can give you some code to start.

[Abramus]

I don't think he could create 3D engine in OpenGL in only 15 days. Maybe in DirectX, as it provides models. However, I would use some existing engine instead. Like Ogre3D or something.