This game is not on the computer but is still on apple gadgets
and some android gadgets (I'm not sure if anywhere else but you can check).
In dragonvale you need to start a flying island (you could buy more :) and have
a special money currency called Dragoncash which is earned by dragons.
You could start with a baby plant dragon
and end with level 10 rainbow dragons.
Build and upgrade shrines to get dragons to levels more than 10!
Finish goals to get higher levels.
And every dragon can be breeded!