Asmodeus was introduced into the game mainly as a reminder that there are beings stronger than the player (although he can be defeated if you are persistent). He does not offer any additional interactions. The only interesting thing is that defeating him in a mage duel will grant you a special modifier that permanently increases your power by 1.

So I haven't played the game for about 6 months. Who is this new character, Asmodeus? Is he stronger than Abdul Alhazred?

Asmodeus is Lucifer's trusted aide, ruler of one of the circles of hell, and one of the most powerful demons in existence. Theoretically, he is slightly stronger than Abdul, but it's hard to say, Alhazred has the Singularity (hmm, maybe someday I'll set up a few duels between them and see who usually wins.)
Player is not obliged to fight him. However, if you summon him deliberately, it will end in a tough mage duel or some other harm to you.
So it's a completely optional challenge, or just a curiosity otherwise.

I decided that the option of summoning something that could destroy even a powerful summoner would make this world a little more believable ;) After all, there are beings of immeasurable power in this world, although they are modestly represented in the mod by Asmodeus and Abdul (and Mimmy...).

It is also a certain archetype of a character - someone very powerful, arrogant, contemptuous of others and somewhat decadent. A bit of a classic villain.

He does not participate in any crises or other events - he is not particularly interested in Earth.

Thank you for the answer! Although I'd like to do something more with him (or the bastard Abdul too), I really enjoy your worldbuilding through stuff like this.

Thanks for the amazing work. This will always be my favorite mod

:]
GL&HF

引用自 ryciebani666：

Asmodeus is Lucifer's trusted aide, ruler of one of the circles of hell, and one of the most powerful demons in existence. Theoretically, he is slightly stronger than Abdul, but it's hard to say, Alhazred has the Singularity (hmm, maybe someday I'll set up a few duels between them and see who usually wins.)
Player is not obliged to fight him. However, if you summon him deliberately, it will end in a tough mage duel or some other harm to you.
So it's a completely optional challenge, or just a curiosity otherwise.

I decided that the option of summoning something that could destroy even a powerful summoner would make this world a little more believable ;) After all, there are beings of immeasurable power in this world, although they are modestly represented in the mod by Asmodeus and Abdul (and Mimmy...).

It is also a certain archetype of a character - someone very powerful, arrogant, contemptuous of others and somewhat decadent. A bit of a classic villain.

He does not participate in any crises or other events - he is not particularly interested in Earth.

Can I make him my follower, or servant, like Belial?

@HunkHerrmann
Doubtful :D
Even if you won the duel and spared him, Asmodeus would return to hell after a while. You could say he dies of shame...