This is My Abyss of Randomness.

When Sky, Deadlox, TrueMu, SSundee, Jerome, BajanCanadian and HuskyMudkipz come together to play a parkour map with a mysterious creator, they're sent to a bizzare world, and have to go on a quest to get home. The world they're sent to? Equestria. (Cover art by me :3)