Start with four elements and see what they can become. Every discovery joins your collection and opens new combinations.
Any two items in your collection can be tried, including two copies of the same item. A known recipe creates a result and adds it to your collection. Unsuccessful pairs do not remove either item. Use the search field as your collection grows.
No. Element Lab has an authored set of recipes so every result is stable and repeatable. The hint button shows one available path to a discovery you have not made yet.