Oftentimes, these requirements include other mods for compatibility or mod loaders to function correctly. Most mods have special requirements that one should check for, too. While file sizes for a game as old as Diablo 2 tend to be tiny, it's still worth taking a second to make sure there's enough space on your PC for these installations. Make sure to visit reputable sites, such as ModDB or Nexus Mods, for a more secure connection where viruses and other sketchy downloads are more scarce – and remember to scan files before opening them. When it comes to installing mods for Diablo 2, there are a few things to consider before even clicking the download button.