> For the complete documentation index, see [llms.txt](https://meteorn-run-organization.gitbook.io/whitepaper-meteorn-run/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://meteorn-run-organization.gitbook.io/whitepaper-meteorn-run/game-play/other-systems.md).

# Other systems

- [Activation code System](https://meteorn-run-organization.gitbook.io/whitepaper-meteorn-run/game-play/other-systems/activation-code-system.md)
- [Notification System](https://meteorn-run-organization.gitbook.io/whitepaper-meteorn-run/game-play/other-systems/notification-system.md)
- [Security](https://meteorn-run-organization.gitbook.io/whitepaper-meteorn-run/game-play/other-systems/security.md)