This is the original Site-21 map, released back in 2019 and built by SmokeyBBQ and the Site-21 community. The map is slightly unstable and laggy due to corruption, as it also functioned as the server map. However, it should be playable if you adjust your settings. The download includes the map, resource pack, config, and mods necessary for it to function.

The map features a fully built and completed facility with multiple zones and every SCP from SCP: Lockdown in 2019, along with some custom SCPs added in. It can be used for videos, roleplays, or servers; however, anything that goes public should credit Site-21 with a link.

Crashing when loading in?
If your game crashes or takes too long to load in, try reducing your render distance to the minimum at first. You can then increase it once you've fully loaded in. We also recommend that you increase the amount of allocated ram to Minecraft.

Also check out:
Our new Site-21 map we're working on: SCP Site-21┃Mega Project (2024) Minecraft Map (planetminecraft.com)

Interested in the roleplay server?
We still have a server dedicated to Site-21 and its newer map. Click here for more information: Minecraft SCP Roleplay Server Site-21 Minecraft Server (planetminecraft.com)