I've put this one under a read more as it's quite long.
The main character's computer then reminds the main character of an article he wrote about in one of his journals, about how a universe could relatively easily be created in a laboratory. It then says that it's "been performing some experiments" on this, and suggests that it could easily impose itself upon that universe and possibly affect and create other universes through itself. The thought of his own creation making such a wildly ingenious idea causes the main character to forgo caution and ignore the computer's ominous tones and agree to its plan wholeheartedly.
He soon sets about creating a machine to do exactly that, following the computer's limited instruction and figuring out the rest on his own. When the funding Mircosoft executive notices a few suspicious purchases on his new bank account, he demands through email that the main character explain. The main character tries to use a bullshit explanation he took from Star Trek, though the executive easily sees through the ruse and threatens to in call an investigation. So the main character tells the truth (he leaves out the promise of him becoming god). The executive doesn't believe him and says that he'll have a search warrant within the week.
The executive, when he arrives, discovers that the main character was telling the truth the second time, congratulates him on his genius, and leaves. At that point, the machine was pretty much complete, all that was required was for the computer to finish arranging the seed matter and a bit of fine tuning.
There is then a rather dramatic build-up before the main character pulls the switch, culminating in a single, very, very small spark going off rather anticlimactically in the center of the machine. Seconds afterward, his other computer suddenly plays the SBURB install scene, and his game begins.
THE ADVENTURE (as it stands so far):
The main character does not enter the medium as either a client nor server player. Instead, he has to explore some ruins (or perform some other action) which will begin his solar system's Reckoning (though he thinks that it is just the first step of his ascension to godhood, which it is). When he does this, the Sun suddenly burns out and he is teleported to the surface of its core, a dead, mechanical planetoid named 'Dead Sol'.
When he arrives here, his goal is soon revealed to him. (note: I'm not sure how much of this should be revealed to the character at the time, though definitely less then this. Probably much less.) His Medium, which I shall now call the 'Dead Sol Medium', is actually a sort of Meta-Medium which connects four separate sessions of the game (not including its own). These are each set in a completely separate alternative universe, each with life on only one of the inner planets of the Solar system, one for Mars, one for Venus, one for Mercury, and the one he just left being Earth's.
It is revealed that each of these sessions will fail. To ascend to godhood and thus win the game, he must enter each session in turn and cause it to succeed. He is allowed to view one of the sessions at a time, as it is before he arrives in it and he is told that once he enters the session, he cannot get out.
ADVENTURE-META:
In each of the sessions, the players within it will have to make a choice of solidifying a singular aspect or object or concept or something which will have a significant and cumulative effect on how their game is formed, very similar to prototyping a kernalsprite in homestuck but possibly more powerful (I'm also thinking of having forum votes on what each player should prototype when that player is revealed). When the main character completes a session, the prototyped things will be compared with one another and a singular aspect which all of them had in common will be chosen. This will then be stored in the Deal Sol Session, and will be used in a way very similar to a prototyped kernalsprite to affect each of the subsequent session in turn, also having a cumulative effect.
It is also revealed early on that Dead Sol, as it is activated through the completing of each session, will be assigned a new version letter, which was seemingly arbitrarily chosen by the computer to spell the name the main character gave it (which is purposely never revealed and, when brought up, is nonchalantly brushed aside as 'not important'). The main character points out that the name he gave the computer had 5 letters, though there are only 4 sessions for him to fix. The computer does not answer him.
META-STORY STUFF (MASSIVE SPOILERS):
This story was originally inspired as and intended to be the birth of Skaia. As such, SBURB does not actually exist in this story, and the gaming abstracts which follow aren't created until late in the story. The main character's computer is supposed to be Skaia, though in true Homestuck fashion it's not that simple (and exactly how it's not that simple will be eventually revealed if this story ever gets off the ground).
Also, because SBURB hasn't been created yet, its rules do not exist. In this story the games work differently, though exactly how differently I haven't quite worked out yet (I'd like things to become progressively more SBURB-like as things progress, however).
