If there's someone else here other than me who is a Linux user and finds the names of the files inside the zip broken no matter what locale you use, don't worry, there's a very simple fix. Decompress the zip in the folder you want to have the game files, rename the exe file to whatever you want but make sure it ends in .exe, and then rename folder with the broken characters to Iris_Data. That should be enough to make the game work unless there's some other file with a broken name that I haven't found yet.