We haven't had a good ol' "Choose Your Own Adventure" style post in years. Time to change that! Fate Set in Stone is a collaboration between a whole bunch of wrtiers with you set as the lead pony. Exact description:
"You are a pony in Ponyville who has come across Berry Punch frozen in stone. the mane six begin an investigation, and you decide to go along with them! what happens next is entirely up to you!
Choose your actions carefully as you make your way through this adventure. Click the links to your action of choice and explore the hundreds of different scenarios and dozens of endings. Meet various villains and explore different ways to save Berry... and possibly more..."
Head on over here to play it!