Viva Pinata is a game where the player cultivates a garden in order to attract wild animals to come to the garden, and thereby domesticate them and (breed them, sell them, use the profits to buy more expensive seeds and) use the domesticated animals to attract more wild animals to the garden.
In Ludum Dare #35, my girlfriend and I made smaller, simpler, gardening game, a tribute to Viva Pinata, called Viva Pajaro.
In Viva Pajaro, the player cultivates a garden in order to attract wild birds to come near the garden. The wild birds drop seeds, which the player can plant and grow in order to attract other wild birds.
This is a simple model (using Joris Dormans's Machinations) of Viva Pajaro:
Also, Simon Wardley has a technique for mapping business landscapes.