While was once difficult to find and play on modern hardware, it is now widely available in a remastered version. If you are looking to download the full version for PC, the best and most legitimate way is through modern digital storefronts that have updated the game for current systems. Where to Download the Full Version
DirectX 11 compatible (GeForce GTX 950 or Radeon R7 370 for 4K). Storage: 2 GB available space. Legacy and Abandonware download-chasm-the-rift-for-pc-full-version
The remastered version requires significantly more than the original 1997 hardware but remains very accessible for modern PCs: 64-bit Windows 10 / 11. While was once difficult to find and play