You can find digital keys for on various platforms:
To solve the puzzle, you must move the giant white king piece on the floor to match the position of the white king on the smaller chessboard on the desk.
: Offers North American Steam keys for around $5.29 (original price $21.69).
: Available for around $4.99 (original price $19.99).
: If you move the wrong piece or make an incorrect move, the room may release poison gas. Where to Buy Resident Evil 0 HD Remaster
: Direct purchase is available on the official Steam store page . Resident Evil 0 HD REMASTER