The Room Forge - Liminal Industries

This pack allows you to design and build rooms for the Liminal Industries modpack and view existing rooms that are currently in use.

If you are looking for the main Liminial Industries pack, you can find it here:
https://www.curseforge.com/minecraft/modpacks/liminal-industries

Visit the Official Discord's Room Submissions Channel for further information on how to submit your rooms: 
https://discord.gg/bsFzBJkWsM

This pack comes with tools like WorldEdit pre-installed.
Of course, you are free to install further building tools yourself.