This is the scratch version of the backrooms.Its not so creepy like the real game, but also very fun. Look around you with arrow keys and move with wasd.Jump with space.tip: when you jump over the enemy, you get no damage. If you press m... its a small secret function. Your aim its to find the 10 keys without died and then spawn the exit you have to touch (its just a wall with other textures).
Thanks to @Griffpatch for Raycasting tutorial. Be carefull because of jumpscares.