Try load WAD file from DOOM or DOOM2
Create or change levels in wad files with slade - https://slade.mancubus.net/
File name must be "doom.wad" or "fdoom.wad" for Final DOOM (have 4 episodes).
Load doom2.wad file for DOOM4
If mouse doesn't work try shift+tab (or escape) and move mouse.
By default, 5 levels playable
Desktop version:
Use arrow keys or WASD of keyboard for movement
С and V - view at left/right
E - open doors
Space - shoot
M or Tab - open/close map
+/- zoom in/out
Supported X360 gamepad
For mobile and tablet look in settings "View Control"
Zoom In/Out - left and right top corners of screen
Based on open source of Doom https://github.com/id-Software/DOOM
Ported on C# and works with monogame https://www.monogame.net
Graphic data used from FreeDoom https://freedoom.github.io
