**Challenge:** «Challenge» is an endless survival mode in Spells of Genesis. Survive and clear random waves as long as possible while difficulty is rising each wave! The farther you progress before your cards are defeated, the more gold you earn. To unlock the Challenge mode, you have to complete at least 1 star in «The Orc» campaign.
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# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.spellsofgenesis.com/spells-of-genesis/gameplay/game-modes/challenge.md?ask=
```
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.