The Marimo is a virtual pet simulator available on the iPhone platform. Emulating the growth of a Marimo, a plant resembling a green ball from Hokkaido, Japan, you can nurture your own Marimo in this game. Care for your Marimo as it gradually grows each day, remembering to refresh its water when needed to prevent withering. Additionally, you have the ability to customize your Marimo by renaming it, changing the background, and even uploading images to social media platforms.

Interact with your Marimo by dragging it around, tapping to pick it up, and rotating it with two fingers. The Marimo's movements correspond to the device's orientation, and it thrives in well-lit environments where photosynthesis occurs.