Forbidden Portals
by rtficial
Forbidden Portals blocks the Nether and End portals until a player meets set requirements, with a rule-based system that repels entry attempts that skip steps.
What it does
Players who cross the Nether or End normally find the portals open from the start. With this mod, the Nether portal stays sealed until the Warden is defeated, and the End portal stays inactive until the Wither falls in combat. The Overworld is often where players gather fast resources, so the mod sends them to the deeper dimensions first, where the dangers are the reason for the journey.
The sealing is part of an Immersive Repulsion System. An attempt to enter a portal without meeting its requirements is turned back with an Access Denied message, which means a player who accidentally skips steps is stopped rather than carried on. Cross-dimension travel no longer depends on carrying resources, since the progression itself controls access.
Forbidden Portals is a Fabric mod for 26.1.2, with a single file, 1.5.3, dated 2026-05-13. It is published under the CC0 1.0 Universal license, which is not open source, and the environment is client and server, so the server and every player need it. It is listed in the World generation category, with Game mechanics and Utility as secondary categories.
Key features
Sealed Nether portal
The Nether portal stays closed until the Warden is defeated, so the dimension is reached only after that fight.
Blocked End portal
The End portal stays inactive until the Wither falls, which makes the endgame a deliberate step.
Access Denied repulsion
Entering a portal before its requirements are met sends the player back with an Access Denied message.
Progression through portals
Each portal acts as a checkpoint, so the order of dimensions follows the order of boss fights.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Players who want the Nether and End to be earned through boss fights, and server owners who run a fixed progression order for the dimensions.
How it compares
PortalNuhUh is a Fabric mod for 26.1.2 that is server-side only, so players join without installing it, and it uses a custom license that is not open source. Netherless is a Fabric mod for 26.1.2 that runs on client and server under the MIT License, which is not open source. Forbidden Portals needs both sides, while PortalNuhUh needs only the server.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Forbidden Portals | Fabric | 26.1.2 | Client and server | 2026-05-13 |
| PortalNuhUh | Fabric | 26.1.2 | Server-side only | 2026-05-30 |
| Netherless | Fabric | 26.1.2 | Client and server | 2026-06-10 |
Questions
Does Forbidden Portals need to be installed on the server?
Which game version does Forbidden Portals support?
What happens if a player tries to enter a portal too early?
In the catalog
Forbidden Portals is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 15,189 mods support Minecraft 26.1.2.
Similar mods
What the author says
Modern Minecraft often overlooks the dangers of the Overworld in favor of quick resources from the Nether and the End. Forbidden Portals changes that dynamic by sealing the dimensional portals. To cross them, you don’t just need resources; you need victory. Key Features: The Sealed Nether Portal: Access to the Nether…
Official listing
- Modrinth page
- modrinth.com/mod/forbidden-portals
- Owner
- rtficial
- Published
- 2026-05-06
- Updated on Modrinth
- 2026-05-13
- Facts verified
- 2026-10-15