Basically, a stable time loop:
Here's a posible timeline, pleas remember that this is just an EXAMPLE, not a sugetion that it shuld be exactly like this:
* negative a few millenia: Armok arives from future, creates univere, goes back to future.
* negative slightly fewer millenia: the history of the world, loads of stuff hapens
* negative 5 days: arch-demon Jervous arrives from Armoks throne room, investigates nightwing cave, set in motion events with the humans and dwarves, and posibly soem other stuff.
* negative 1 day: the first part of this story happens.
* Current time: ratman-Jervous mates with kobold-Slimdus, Jervous recives a vision from Armok abaut ring-creation at time positive 9001 years.
* Positive a few hours/days: lots of event happen, Jervous past and furure selves intrearct, and ratman-Jervous recives the means of later becoming powerfull, arch-demon Jervous returns to the future.
* positive a few years: ratman-Jervous group grows in power, and becaome first a large setlement, then the begining of a civ. ratman-Jervous at some point begins to learn abaut demonic stuff
* positive a few millenia: Jervous gains controle over a large empire, and becomes a demon, and then an arch demon, and so does Slimdus.
* Positive a few more milenia: Jervous and Slimdus realize that to secure their power/gain more/etc. they need to create a magical ring with spesific prpeties, and they start working on that. As part of the proces they begin fusing into a single creture.
* Positive 9001 years, and a few months: The ring is completed, but during the celebrations Jervous is abducted and Transported into Armoks throne room. After a while he is returned.
* Positive 9001 years, and a few more months: The ritual is completed, the ring, Jervous, and Slimdus have fused into a single godlike entity.
* Positive 9001 years, and a few more years: the godlike entity gains imense power, world domination, etc.
* Positive 9 and a few more milenia: the entity does something necesery for the later arising of Armok.
* positive lots more millenia: the entity that is Jervous/Slimdus rules and pospers, but finaly falls into the tides of history after having ruled for many manay aeons.
* positive a few
billion years: Armok arises, and destroys the world. Time as a concept ends.
*
+1: Armok goes back in time, creates universe, comes back.
*
+2: Armok thinks and pounders, and figures out the entire plot of everything and what must be done to avoid time paradoxes. and meddles a bit with time.
*
+3: Armok sends a vision of the ring-creation as Positive 9001 years to the Curent Time ratman-Jervous while said ratman is mating.
*
+4: Armok retrives arch-demon Jervous from ring-creation celebrations, tells him stuff, and sends him to negative 5 days.
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+5 more, as of yet unknown time medling.
*
+???: ?!?