About THE CASTLE

Wake outside a vanished-souls castle and find five keys and a silver cross while a ghost hunts you through the fog.

On a computer: WASD move, mouse look, Shift run, Space jump, C crouch, E use, V camera
On a phone: Left stick move, drag right to look, buttons: jump, crouch, run, use, camera

Ryusui described this game in a sentence on OhMyGames and the AI built it. You can make your own the same way, free to start.