About This File
Unpack the archive, then use the tool to patch \Sunless Skies_Data\globalgamemanagers and \Sunless Skies_Data\Managed\Assembly-CSharp.dll within the game folder.
This unlocks all resolutions and removes the pillarboxing (black bars) at ratios wider than 16:9
Tested with the latest GOG version at 21:9, 32:9 and 48:9 resolutions.
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What's New in Version 1.5 See changelog
Updated and remade the patcher to hopefully have it work with all game versions.