> For the complete documentation index, see [llms.txt](https://docs.heroesdefense.games/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.heroesdefense.games/about-game/pve-game-mode.md).

# PvE Game Mode

- [Campaign](https://docs.heroesdefense.games/about-game/pve-game-mode/campaign.md): This is the main PVE mode, players clear nodes to obtain resource to unlock and to upgrade heroes, this mode is unlocked right after the game starts.
- [Raid](https://docs.heroesdefense.games/about-game/pve-game-mode/raid.md): This is the main farming mode of the game, where players can earn resources to upgrade heroes and their equipment.