Nimrod of Babel has certain objections to how the galaxy is run, so he becomes the Eleventh Primarch. Very briefly. (Warhammer Fantasy / 40K Fusion)

Dreams had always been an escape for Harry Potter, but he was pretty sure that you weren't supposed to dream entire lives all at once. Now what's this whole dimensions malarkey and what does divination have to do with it? (Multicrossover)

A materials scientist reincarnates on Azeroth sometime before the First War. Naturally, the first order of business is figuring out why the hell his perfectly mundane technology insists on spewing self-defeating ritual magic everywhere. Clearly, the method to Arcane's madness was being deliberately obtuse. The Light, sadly, didn't seem to be in on the joke.

A plasma physicist reincarnates in the Elemental Nations. But since past life regression is a less than spontaneous affair, he only remembers this during his near death experience when the Kyuubi attacks the village. He does not consider this a fair exchange for the lives of his wife and children. But what can a mere civilian do but trudge on?

Tony Stark didn't waste Infinity on a normie's patch job. Unfortunately, simulations didn't lead to the outcomes he was looking for. Tired and depressed on top of dying and losing his family, he almost pulled a Wandavision, which is just terrible. He settled for dumping the problem on his therapist, namely me. That I'm the reformed Emperor of Space Sparta is pure coincidence.

All fake. All of it had been a simulation. One hour on the operating table, fifty years dying over and over in order to thread some unseen needle hung in front of him by a mad AI. No more. If unending torment inside a simulation was the best they could do, the Forerunners, their AIs, the Librarian, they could all go hang. From now on, he made his own choices. And so would mankind.

Bilbo Baggins wondered what Gandalf was thinking. Oh well, Bag End would sort him out. His house did NOT approve of vandalism, thank you very much. That rune carved into his door learned it personally. Besides, it served the wizard right for not heeding the rumors about Bilbo and the Old Forest.

There are people and powers in the Cosmos that look into the shadows of possible futures and times undone as a matter of course. One doesn't even need to travel beyond Earth to find them. Sadly for all but one of the parties involved, one wholly intended consequence of this is that a close encounter of the third kind ends up overlapping a DMT trip. [Avengers/GOTG/X-Men]

As the ripples of Brandon Stark's life go past the borders of the North to the rest of the world, the Fortune of of House Stark passed down from the time of the Last King in the North gets a few bombs to ponder [Set between 'The Logistics of Good Living' and 'The Strategy of Godly Surviving'].

[Book II of The Logistics of Good Living] His new family didn't take too much work to salvage, other than starting a medical revolution and accidentally causing a religious massacre. Unfortunately, with economic upheaval well underway, magic coming out of the woodwork, and a bloody religious schism on the horizon, it'll take a lot more work to salvage the rest of the world.

The History of Valyria and Her Sons, Kin of Bloodstone, Children of the Green Hand, from the Long Night to the Doom of Fire, from Myth to Magic's End.

Luke insisted this wasn't time travel, but Obi-Wan Kenobi was fairly certain that the difference was purely academic and thus of no consequence to his plans for the future. Now, as a wise and mighty anchorite who was most certainly not going to pick up where he left off as a 12-year old Initiate of the Jedi Order, what should he do first?

If it's true that every lucid dream is actually long-range astral projection or parallel incarnation, he had no qualms about treating this world as real. Of course, he could also be wrong. Wouldn't that be something? If nothing else, though, his new family wouldn't take quite the same amount of work to salvage as his previous one. [Brandon Stark SI]

Past life regression isn't an easy thing when you don't have to work for it. "The Logistics of Good Living" companion piece, from the SI point of view.

The Great Dilemma was not about inevitable conflict between organics and synthetics. That was a lie. The truth was far grander and at the same time far closer. The races of the Galaxy had one name for it: Mass Effect. And Shepard was going to have to fix it. As a 10-year-old. Well shit.

His life started in darkness and he never quite remembered how he welcomed the first light, which was probably for the best. He did remember absolutely everything that came after, though, which wasn't for the best at all. Destiny didn't survive to see even the Friendly Arm Inn, though, so that was something.

Sam refused to think it was over after Bumblebee was captured by Sector Seven and they were all carted off like criminals in the middle of the night. He just didn't expect the next bout of interference to come from within Sector Seven itself. In hindsight, though, that brazen, amazing spy hermit was right: Primus HAD only ever given life to ONE planet.

It was a normal day, until newly turned 8 year-old Harry Potter decided to make a wish upon the dog star (even though he'd almost never actually seen it) and set off something in the Unlabeled Room in the Department of Mysteries. Turns out Dumbledore was wrong. Again. It wasn't love that the Unspeakables were studying down there.

Man goes where his desires take him. He travels the road of his desires and thoughts. He makes his own route—he guides his own vessel. Man is his own Destiny. And now, facing the Great Adventure with open eyes and a bold heart, a particular man has reached the point where he has some say in the matter. (Sequel to HP:DEM)