Restrict lighting of portals to within a ruined portal structure's bounding box. Makes exploration a must and controls Nether travel. Configurable for Overworld and Nether.
A helpful message pops up when attempting to light a portal that isn't in a required location
Portals outside of the ruined portal structure's bounding box will not light (configurable)
If Mod Menu is installed, in-game configuration is available
Dented Modding
Organization