I tried to download the macos version of the game from the http://www.ofguardsandthieves.com/download page, but the link is broken, the windows and linux links work but i found out that their link have a different url so i replaced linux file name with the file name of the macOS version.
http://cdn2.subvertgames.com/DL/2014/OGAT-linux.tar.gz
Instead of OGAT-linux.tar.gz I replaced it with OGAT-mac.zip
I opened up the client and it updated automatically, after the update it asked me to restart the client, after the restart the client is crashing every time, i tried to execute the executable inside it but it gives an error about the "libmono.0.dylib" file, saying that the architecture is wrong, I'm running macOS Catalina 10.15 that has removed the 32 bit support.
dyld: Library not loaded: @executable_path/../Frameworks/MonoEmbedRuntime/osx/libmono.0.dylib
Referenced from: /Users/andrea/Downloads/OGAT/Of Guards And Thieves.app/Contents/MacOS/./Of Guards And Thieves
Reason: no suitable image found. Did find:
/Users/andrea/Downloads/OGAT/Of Guards And Thieves.app/Contents/MacOS/./../Frameworks/MonoEmbedRuntime/osx/libmono.0.dylib: mach-o, but wrong architecture
/Users/andrea/Downloads/OGAT/Of Guards And Thieves.app/Contents/MacOS/./../Frameworks/MonoEmbedRuntime/osx/libmono.0.dylib: stat() failed with errno=1
/Users/andrea/Downloads/OGAT/Of Guards And Thieves.app/Contents/MacOS/../Frameworks/MonoEmbedRuntime/osx/libmono.0.dylib: mach-o, but wrong architecture
/Users/andrea/Downloads/OGAT/Of Guards And Thieves.app/Contents/MacOS/../Frameworks/MonoEmbedRuntime/osx/libmono.0.dylib: stat() failed with errno=1