Cauldron Minecraft: Mixing Forge Mods With Spigot Plugins

For years, Minecraft server owners had to pick a side. Mods or plugins, never both. Cauldron exists to break that rule by combining Forge with the Spigot project, allowing Bukkit style plugins to run alongside Forge mods on the same server. It used to ship under the name MCPC+ before the rebrand.

What Cauldron actually does

Cauldron acts as a hybrid core that runs the Forge environment for mods while keeping the Spigot plugin loader alive. You get a server where both ecosystems coexist, at least in theory. In practice the implementation is famously fragile.

Why it can get messy

The Cauldron core itself has a reputation for instability, and things only get worse once you start stacking heavy modpacks against plugins that were never built with mods in mind. Expect to spend real time reading crash logs, testing combinations and removing anything that fights with the rest of the stack.

What players need to join

Anyone connecting will need a Forge client with the same mods installed as the server. That raises the entry bar for newcomers and can slow growth on a public server, so factor it in before opening the gates.