The version included in Steam was updated on Tuesday 5 September 2017.

It does not work with current versions of Darkest Dungeon whether they are on Steam or not.

It is a truly ancient version of that executable and produces significantly different output to the latest version included with Steam. It crashes because the localization.exe included in the '_windowsnosteam' directory was updated on the Monday 23 November 2015. Trying to run Darkest Dungeon after that will make it crash. Copying to colours.darkest makes the included localization.exe work. You can go to the 'colours' directory and copy '' to 'colours.darkest' in the same directory. I have investigated it, here are the findings: People have contacted the devs and received no reply for that problem.

'localization.exe' is needed to compile localization files if people want to make a mod or modify text in game. You can see the posts about localization.exe not working at all with the GOG version. Myozhen: Mods are definitely not well supported in the GOG version of Darkest Dungeon.

Steam how to make a darkest dungeon mod