Move the gardener with the keyboard arrows and interact with elements using spacebar.

Take a seed and drop it in the ground to plant it.

Water the seed and the plant to keep it growing.
Don´t water too much or it will get flooded.
Don´t allow it to get too dry and will die.

The critter is somehow an enemy and an ally at the same time. It will eat your plants but also poo some good compost for your plants to grow better and give seeds.

Keep the balance in your garden until time ends and watch how happy your garden can get.