[ WP ] War breaks out between the legions of hell and heaven , humanity joins and surprisingly is winning against both

Humanity had made the galaxy their home. Whole planets were sent out to other galaxies, to settle the ones with no advanced life, and to make contact with other species. 
 
 A few intelligent life forms had been found across the inhabited. Most too primitive to be useful, but all of them lots to learn from, scientifically. 
 
 A curious finding was that the systems with intelligent beings all had similar folklore as humans - comparable gods, similar myths, and so on. 
 
 Also, no life form was found to ever have gotten completely destroyed by an impact or other catastrophic event after intelligence had emerged. While traces of primitive life forms were quite common in systems that had been ravaged by such events. 
 
 Apparently, there was an old race of aliens for which we were something like a big petri dish. They were visiting us, they did certain stunts with us which might be something like intelligence tests, and they pretty much shelved us in the last hundred thousand years. 
 
 Years in which humanity had advanced exponentially, dropping their human bodies a long time ago for artificial bodies, which, by now, had become as big as planets. 
 
 Some of the humans decided to secretly investigate ways to find a path out of this petri dish. They set up surveillance in the whole known universe, they probed the limits of physics to find ways out, and so on. 
 
 Their break-through came when one of those aliens tried to have a look at Earth - not finding it where it used to be, as humanity played with planets now the way they used to play billiard. Automated defense system had quickly overwhelmed the visitor, which was actually nothing but a simple probe, and quite primitive, actually. 
 
 The visit left some curious physical and chemical traces, from which humanity found a way to penetrate the border between the worlds. The remains of the probe also allowed some ideas how those aliens worked - apparently, their universe was 4-dimensional, so humans learned to think and see 4-dimensional - even if that meant little in their 3-dimensional world. 
 
 A large scale breakout was planned, with humans from across the whole galaxy and even some outposts from the nearest galactic neighbors being involved. One alien race, which was nearly as advanced as humanity, also took part. 
 
 The technological difficulties were enormous - it was basically of a program running on a computer to manipulate the area around the computer to produce something with which it could see and move. Because we were all just a simulation on an advanced alien server. 
 
 When humans and their allies broke out, they found themselves, despite planet size, as small as bacteria are for humans. As they had already figured, they were in a storage area in a closed lab. They could now analyse the things they found in the lab, they could improve their simple bodies, which, being 3-dimensional with minor 4-dimensional adaptions, were rather inadequate for this world - like a paper figure trying to stand up. 
 
 Unseen by the aliens, the break-outs managed to analyse the lab. They managed to break into their computer systems, even their codes, and quickly got an overview of the whole alien world - which was 4-dimensional, but less than a light-year to travel in any of the 8 directions. 
 
 The simulation with humanity got an upgrade ( like whole planets made of rare and valuable resources, but also a path to 4-dimensionality and closing the distances in the universe with that ), and a direct connection to the alien world to make it easier for more humans to break out - and go back. 
 
 Humanity also stole some technology from the more successful experiments of the aliens. And they sent probes into some of the other experiments, using them as a hiding ground in case they were caught, and settling in unused galaxies or equivalent structures in them. 
 
 The stories about heaven and hell were also found out to originate in two factions of aliens - one wanting to equip experimental simulated life forms with know-how and power, to make the simulations develop faster, and the other preferring to only watch as god-like judges, destroying failed experiments at a whim, and indoctrinating them with their world-view instead of knowledge. Apparently, leaving the subjects to choose which way to go was part of their play and ethics. 
 
 Using equipment in the lab, the break-outs quickly took over not only the simulation servers, but also other computers. They hid in corners or in unassuming equipment. And they managed to find ways out of the lab, exploring the whole planet. 
 
 In several remote regions on the planet, they set up outposts. Advanced humans came about, which did not have the physical limitation to planet size - their bodies, like the bodies of the aliens, now were big enough to allow a complexity as that of billions of planetary sized humans. And unlike the aliens, who had become complacent at some point billions of years ago, they kept learning, improving, and getting better than those aliens. 
 
 The original simulation of the universe of humanity had become distributed to several servers, now mostly human made, but with fall back options to the original servers in case the humans were successfully driven from the alien planet. 
 
 Also, piggy-backing on alien space ships, humanity had spread to all of the universe of the aliens. 
 
 Eventually, one of the humans still in the lab, when just emerging from one of the simulation servers, was caught by the aliens. A big quarrel erupted between the two factions of aliens. Eventually, they decided to destroy the simulations. 
 
 When they came for the servers, even though humanity's simulation was pretty safe, humans decided to keep them from doing this - out of respect of the countless other simulated beings. 
 
 So a war started. One unprepared alien after another died - with illustrious names like Wedin, Thurr, O'tin, Ethina, She'vo, and even their boss, billions of years old, A'Ra, among the victims. Humanity quickly took over the home planet of the aliens, and many uninhabited smaller planets and moons. And then negotiated a peace with the remaining aliens.
