Now if that title doesn't make you want to play this game, I don't know what will. Derpy & The Hunting of the Super Tasty Muffin (of Awesomeness) is a graphic text adventure made by PonyDreamStudios that will most likely entertain you with all its open possibilities and silly situations. The game is currently in Beta, but the main story is already completed.
The story of this game follows our main character, Derpy, as she discovers the recipe for the most delicious, most awesome muffin in existence and immediately sets off to collect the ingredients necessary to bake it, with the help of Twilight Sparkle and her friends.
The music is retro-styled and quite catchy, and the graphics are made to give you the feeling that you're playing in an old TV, which it succeeded in doing in my opinion. These settings can be turned off if you prefer, however.
The gameplay consists entirely of typing your actions, like most other games of this genre, and allows you a great deal of freedom when it comes to verbs and nouns, as well as implementing abbreviations of certain words, which is a big relief, especially when you have to write something like "Sweet Apple Acres" often (which can be replaced simply by "saa").
However, being an almost completely text-driven game, things that can normally be overlooked such as misspellings or grammar errors become a much bigger deal, and this game unfortunately had quite a few of those. You can still understand everything, but when you detect one it really takes you out of the immersion.
As for something a little more troublesome, during my playthrough of the game I encountered a bug that prevented me from advancing normally. Fortunately, the game includes cheat commands that the player can use, which allowed me to skip the one obstacle that was causing the crash without skipping more than a few lines of dialogue.
Also, if you get stuck or don't know what to do at any point in the game (which is very common in text adventure games), there is a full video walkthrough available. It only covers the main objective of the game, though. There are many easter eggs and secrets that you can find if you're creative.
Overall, the game is very entertaining and fun, although the problems mentioned before may hinder the experience slightly, but the good things far outweigh the bad.