It's 3D game inspired by DOS wolf3d
Screenshot:

It requires SFML 2.5.1, openGL, GLEW, cmake and g++
Mouse moves camera
| Key | Behavior |
|---|---|
| W | go forward |
| S | go backward |
| A | go left |
| D | go right |
| Up | go forward |
| Down | go backward |
| Left | look left |
| Right | look right |
| G | Noclip |
| Tilde | Debug info |
| Escape | exit |
Graphics are from Lode Vandevenne and Lotos
You can go few pixels in wall - I'll fix this in future