Windows:

XP, Vista, Windows 7
Clicker 5 or Clicker 6

Mac:

Clicker 5 - Mac OS X 10.5, 10.6
Clicker 6 - Mac OS X 10.5, 10.6, 10.7

Networks:

To purchase Planet Wobble for a network, simply purchase a Class Pack. The CD includes a network installer, together with full instructions.