Downloading Murky 0.8.3 for Mac from our website was free. The software is included in System Tools. This free Mac application was originally created by snej.
From the developer:
Murky is a GUI client app for the Mercurial distributed version-control system. It lets you manage repositories and source files without using a command-line.
You may want to check out more Mac applications, such as Sea Defender, which might be related to Murky.