Has Anyone made Illmarsh using Deep Ones?

[Sensen]

As the subject says - at the time of Wake of the Watcher's release, the AP used skum and their half-breed spawn to take the roles of the Deep Ones in their Shadow over Innsmouth homage. Since that time, there have been statistics released for both Deep Ones and their Hybrid kin. I'm curious, has anyone changed the statistics to use those creatures rather than the skum and their kindred?

[Sunderstone]

Great idea. :)

[Something-Different]

I figure both are pretty much the same creature - Skum are just Deep Ones with the serial number filed off...

or something like that.

I actually see very little reason to change them - what would it change? how would it change up the scenario?

[Thawte]

As far as I can see right now in terms of difference and story,
it could effect a good bit of the skum's relationship with the town, the visitors, and the relationship with the cultists.

The Deep One statblock says
"...this proximity allows deep ones to pursue one of their favorite goals — commingling with and corrupting surface-dwelling humanoids. Unlike skum, a similar aquatic race that reproduces with surface dwellers, deep ones do so not out of a biological need but as a way to spread their blasphemous religion above the ocean waves.

Spoiler:

— If the Skum were taking people for a biological need; and the deep ones won't need to, then there's a chance there's significantly less people taken for fostering, and more deep one hybrids and deep ones being created by hybrids already born.
This would, at least effect the lore of Below the House

And ofc, the religion wouldn't be Dagon

"The hybrid children of deep ones and humans form a race of their own. These offspring typically live near others of their kind, assuming positions of leadership in their small towns."

Spoiler:

— You could very easily dabble some deep one hybrids across the town, the clerics of the Recondite Order would be great examples. Them and anyone in power in town with any power, or who worships.

"Deep ones usually worship the alien entities known as the Outer Gods or the Great Old Ones, with Cthulhu the foremost among them. Deep one settlements that contain a deep one elder instead typically venerate that powerful deep one, who in turn serves one of the eldritch gods."

Spoiler:

I'd imagine that would probably mean the hidden cult of Dagon would instead be a cult of an old one, and maybe even be some deep one hybrids themselves, as I've said before

However, I wonder; would there be an issue with the concept of Migo still using them as guinea pigs? Would Migo still want to use them as test subjects? Would the Deep Ones want to use something to stop the Migo's progress?

— Looking at the books, I suppose as long as the Migo and the Deep Ones don't have a mutual... agreement, it would still work about the same; and making the normal clerics into deep ones would be flavorful.

(But if you switch it to Deep Ones, it opens up a chance to switch out the Scion of the Sea for something more lovecraftian

I think I'll give this a try in one of the campaigns I run, one of the players has a Deep One Corruption