> For the complete documentation index, see [llms.txt](https://galaxysurvivor.gitbook.io/galaxy-survivor/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://galaxysurvivor.gitbook.io/galaxy-survivor/upgrade-system.md).

# Upgrade system

In Galaxy Survivor, players can participate in in-game activities, missions, challenges to receive materials and upgrade the Equipment of Warships.

![](/files/baZcfe4lezlmbYJ6VQnT)