GitHub has instructions for installing the Substance of Subsistence. The difficult part is locating a PC copy of the game. Metal Gear Solid 2 and Metal Gear Solid 3 were removed from GOG and other digital marketplaces in 2021 due to a “temporary” licence problem. In July, the firm said that it was still attempting to resolve the disagreement but did not specify when the games would be available for purchase again.
