Mongoose3 Unlocked the Mongoose 3 achievement for having at least three original repos where Ruby is the dominant language.

Komododragon Unlocked the Komodo Dragon achievement for having at least one original repo where Java is the dominant language.

Velociraptor Unlocked the Velociraptor achievement for having at least one original repo where Perl is the dominant language.

Nephilakomaci Unlocked the Nephila Komaci achievement for having at least one original repos where PHP is the dominant language

Walrus Unlocked the Walrus achievement for using at least 4 different languages throughout your open source repos. Javascript, python, ruby, coffeescript, tcl, php, perl, and java.

Python Unlocked the Python achievement for having at least one original repo where Python is the dominant language.

Python3 Unlocked the Python 3 achievement for having at least three original repos where Python is the dominant language

Earlyadopter Created an account within github's first 6 months on april 3, 2008.

Mongoose Unlocked the Mongoose achievement for having at least one original repo where Ruby is the dominant language.

Forked1 Unlocked the Forked achievement for having a project valued enough to be forked by someone else.

Charity Unlocked the Charity achievement for forking and commiting to someone's open source project.