If you are not eligible for the free upgrade, the game is available for purchase at these retailers:
: The original version has been delisted from most major storefronts as a standalone purchase, as it is now bundled with the remaster. System Shock 2 Free Download
: You can save roughly 10% by purchasing the System Shock + System Shock 2: 25th Anniversary Remaster Bundle on Steam for $62.98 . Summary of Versions If you are not eligible for the free
: The standard price is $29.99 on Steam and GOG, though it frequently goes on sale for as low as $11.99 to $19.49 . System Shock 2 Free Download