Captive Spawner Everywhere removes the vanilla surface restrictions from the Captive Biter Spawner.

Features:

✔ Build Captive Biter Spawners on Vulcanus
✔ Build on Gleba
✔ Build on Fulgora
✔ Build on Aquilo
✔ Multiplayer compatible
✔ Save-game friendly
✔ No runtime scripts
✔ Lightweight prototype-only mod

The mod only removes surface restrictions and does not alter gameplay mechanics or recipes.