1) Download the image "DOFUS_Installer.dmg"
2) At the end of the downloading, your operating system must have installed an image containing the DOFUS application. If not, click on the image "Installer_DOFUS.dmg" which is on your desk.
3) Launch the DOFUS application and follow the step by step installation instructions.
4) Once the installation is over, start DOFUS.
5) The updater checks if there are updates available for your version.
6) Once the updater has installed the updates, click on "Play" to access to DOFUS.