An extremely short summary of Homestuck:

One day a few kids received a game in the mail. They began playing it and found that it will destroy the world if they do not win in time. Various hijinks ensue, including weapon making, monster fighting, and outfit modeling. In another universe, a group of 12 trolls (candy corn horns, grey skin) play the same game. They end up winning their game to collect the ultimate reward, entrance to the universe that they created. They are stopped by a super-powerful deity called Bec Noir who then proceeds to destroy the troll's session. The trolls hide on a meteor and "troll" the kids throughout their lives over the course of a few weeks. After this, the kids discover that their game has been screwed up by the trolls and that they must reset their universe to win the game. They begin to concoct a plan to escape this "Scratch" and enter the new universe. Afterward, each of them dies and comes back as a super powerful "God Tier" with special powers. They start the Scratch and then escape it, leaving their universe to enter the next one, but along the way the party is split into 2 and they each continue on their own with the trolls, whose numbers are severely depleted from the original 12. Meanwhile in the reset universe, another group of 4 kids receive the same game. They begin playing but are stopped by the entity known as Betty Crocker, former ruler of the troll's home planet. All the while a literal god named Lord English has been waiting to appear and suddenly does as both the trolls' and the kids' universes are destroyed. He then proceeds to kill the author's robot. Meanwhile various hijinks ensue on the trolls' meteor as it speeds towards the new universe, involving time travel and talking to one's future and past self.

A/N: A little over 1.5K characters to complete, and is meant to be extremely short. This was based on a challenge presented by a comment to Cascade on Newgrounds. :D So, commenter, if you read this, challenge accepted and completed.