# Citadel > Citadel is a high-stakes gunship sandbox MMO played in focused sessions inside a persistent, player-driven world. Citadel is set inside a vast ancient megastructure divided by civil war. Players fight, haul, mine, salvage, build, trade, and take faction or player work. The result of each session changes the war economy and the opportunities available to others. ## Primary pages - [Citadel game](https://www.thecitadel.com/index.md): Machine-readable version of https://www.thecitadel.com/. - [Citadel world](https://www.thecitadel.com/world.md): Machine-readable version of https://www.thecitadel.com/world. - [Citadel FAQ](https://www.thecitadel.com/faq.md): Machine-readable version of https://www.thecitadel.com/faq. - [Citadel news](https://www.thecitadel.com/news.md): Official updates from https://www.thecitadel.com/news. - [Citadel media](https://www.thecitadel.com/media.md): Official downloadable assets from https://www.thecitadel.com/media. - [Complete Citadel reference](https://www.thecitadel.com/llms-full.txt): The complete game, world, and FAQ source material in one machine-readable document. ## Actions - [Play Citadel](https://alpha.thecitadel.com/?utm_source=ai_agent&utm_medium=markdown&utm_campaign=agent_discovery&utm_content=llms_play): Early access runs in a desktop web browser with no installation. - [Join the Citadel Discord](https://discord.gg/XKmfAkdWGG): Official community. - [Follow Citadel on X](https://x.com/0xCitadel): Official social account.