> For the complete documentation index, see [llms.txt](https://3kmplatform.gitbook.io/3km-evolution-english/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://3kmplatform.gitbook.io/3km-evolution-english/first-gameplay/hero/strengthen-hero/level-up.md).

# Level Up

* You can level up using dungeon progress and heroes as materials.
* When using heroes as a material, there is a difference in the amount of experience increase depending on the ranks and levels of the heroes.
* You can acquire other heroes by drawing out of the pieces of heroes that can be obtained during missions or by drawing heroes from stores.

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