I would like to programmatically add single Inkarnate assets to an Inkarnate map.

This seems unfortunately not permitted.

Example: I'm making a game that shows a map made with Inkarnate. It is a map of a desert. I would like, when I click with the mouse on that map, that a plant appears on the map. The plant would be an Inkarnate asset. There are already other Ikarnate asset plants on that map. The player would see that new plant appears on the Inkarnate map only, and not anywhere else.

I was told that even if that asset is used solely on an Inkarnate map, this breaks the ToS.

I wish there would be a new Plan, for example a Pro++ Plan, which would allow the users to use Inkarnate assets as long as they are placed on an Inkarnate map and not used outside of it, which is the case I described above. This way we could not only create beautiful static maps, but render them also alive and dynamic by using assets that belong to it. Furthermore, such a Pro++ Plan would unleash the creativity using Inkarnate at its full potential.

Last but not least. I'm not a marketing expert, but I'm confident that such a Plan would augment the subscriptions significantly.