RoM - Ars Goetia (Patreon)

This mod requires:

THE XML INJECTOR and Ability to Read

This mod allows you to use Natalia Auditore's Magic Circle to actually summon demons. For now, I'll include the object in this post, and I'll remove in case she updates her post with the customized version I made for the Mod. In case you already have the object, you need to replace it with mine (if you don't know where it is, or if you have it, just place mine in the overrides folder).

Every Sim can conjure a Demon by using the special rug (you can find it under rugs like a regular one, there are instruction on how to find it in the original post)

You can ask a number of things to a Conjured Demon:

The options change if your Sim is a Spellcaster, a Vampire, or a regular Sim (there is something for mermaids too). 

There are 4 elemental Demons to call upon, and each one of them teaches a different school of magic (and has different options for vampires, too)

The Elemental of Earth (Pharyes Of The Mountain) teaches Practical Magic, the Elemental of Water (Undine Of The Lake) teaches potions recipes, the Elemental of Air (Sylph Of The Woods) teaches mischief magic, and the elemental of fire (Lamia Of The Flame) teaches untamed magic. They can unlock magic and teach also for vampire witches. 

All of them have the option to turn your regular sim into an occult type if asked for power:

Here is the fun stuff, though... you don't get to chose what they turn you into... It can be a Witch, a Vampire or... a Mermaid... different elementals have more chance to turn your sim into a specific occult, for example the Fae is more likely to turn Sims into Mages, Lamia (she's a Succubus technically) is more likely to turn your Sim into a Vampire (directly, without waiting, and with magic by default)... The Undine is the only one that has the chance to turn Sims into mermaids.

Vampires and Mages can ask for power, too... but they need to ask the Succubus or the Fae respectively... and they'll force you into a fight:

The XP gain is huge either that you win or lose this fight...

There is a cooldown of two days for asking demons gifts (they're way too powerful)

Be ware that the summoning can fail...

In that case, you get an angry Demon and you'll not be able to interact with them... nor to send them away, they'll just stay there and scream for about 2 hours... 

Something no one wants to deal with...

Once you succeed to call a Demon, you can ask them how to call upon them directly, in that case the chance of failure is greatly reduced:

By the way, before asking them something, is probably better to be friendly with them, or they'll get pissed off the same:

You can't really build a  relationship with them, some friendly interactions are enough to increase the chance of success (be ware of the Fae, she has a thing to ZipZap sims and get playful)

___

You can make your own summoning circle or make the one you have compatible with this mod for summoning, all you need to do are some changes to the object components:

Add  LiveDrag component:

Untick the U2 at the bottom of the object component to allow the interactions to show:

Import the files you'll find in the XML zip (you need this only to make your own rugs)

Change the tuning of the object to my custom tuning you imported:

I don't think I'll ever have to touch the custom tuning, because the interactions are injected. Also import the dummy interaction (it does nothing and doesn't show, I only use it for the injector) so your object will be completely standalone.