To access the debug console youll need to either edit a config file or use a mod. First option requires finding the general.Ini file in your bin config base folder, just add dbgconsoleon=true under the general section and save. If that seems complicated, grab the debug console mod and put the plugins folder plus dssound.Dll into bin x64, much simpler approach but might break after updates.

Once its enabled, hit f2 or @ depending on your keyboard layout during gameplay to bring it up. Commands need exact typing with apostrophes where needed, like addmoney(5000), and make sure to double check syntax since wrong commands can cause issues. Just remember, case matters when typing commands so pay attention to capitals.

Fyi: the mod method is faster but the config file change is more stable long term since it won't break with patches. Also worth noting that some keyboard layouts use # instead of @ to open it.