'A handful of dedicated Volition devs worked on this in their free time to update the engine and remove memory restrictions, as well as finding a way for individual mods to interact and work correctly with each other without the need for running special tools. 'There were many challenges in implementing Steam Workshop support since the game was not originally designed to support modding,' the company said in its announcement.
That's no longer the case, with Volition announcing that mod and Steam Workshop support have been added to the open-world game. Being such a silly game, Saints Row IV would seem to lend itself to modding, and yet that hasn't been officially supported in the three-plus years since its release.