The string you mentioned appears to be a standard naming format used in the software piracy and scene release community. While the exact version number 1.6.77312 does not correspond to an official public Blizzard patch note (wx format, such as the 2.6 patch), the components of the name break down as follows: Diablo II- Resurrected : The base game title.
The text you provided appears to be a specific build or file identifier for Diablo II: Resurrected
Which Linux distribution are you using (Ubuntu, Arch, SteamOS)?
Steam (Proton): Add the game as a "Non-Steam Game" and enable Proton Experimental.
Game Details
To run this specific build on a GNU/Linux environment, the following configuration is recommended: Compatibility Layer: Proton Experimental GE-Proton (latest) is required for optimal stability and video playback. Alternatively, use lutris-ge-proton Required Dependencies: vulkan-loader lib32-vulkan-loader are installed.