Can't tell what my most successful project is...
But according to GitHub Stars, my
most successful project is my RandomQuote Bot (@RandomQuote).
The story behind it is pretty boring:

One day little Skayo thought: "Hey there is no bot on DevRant yet, let's make one!".
Then he began to think: "But what should it do? What would be easy to do for an inexperienced programmer like me?".
Suddenly he got an idea: A Bot that posts a random quote everyday!
Yay!
He instantly started making it.
About a day later, it was finished.
"Let's bring this thing to live", he thought.
And there he was, quickly getting a lot of fucking ++'s...
This bot is like my first born child! I am so proud of him!

And that's the story behind the bot.
Very spectacular, isn't it?