
Altered Portals
Adds the Void Passage ability from Apex Legends.
Screenshots

About this Mod
Adds Alter's tail as a craftable item to allow you to create void passages through blocks.
Usage
While holding Alter's tail in your main or off hand, aim at a block face and right click to create a portal in the direction of the targeted face. If a portal is facing downwards it will create a void string up to 10 blocks below the portal. Right click the string to teleport up the portal.
Placing Conditions
Certain blocks will not allow void passages to be created on them or the side of the block they are attached to. This includes plants, liquids, and generally blocks smaller than a slab with some exceptions such as carpets, fences, doors, etc. Grasses will get replaced by the passages and strings but other blocks that are considered invalid starts will add to the placement distance check. Bedrock, barrier blocks, and end portals and frames will prevent the placing of passages entirely.
Available Versions
How to Install Altered Portals on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21).
Install Mod
Open the mod browser in the dashboard and search for "Altered Portals". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Altered Portals server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21). You can switch loaders with one click in the panel.
Is Altered Portals compatible with fabric?
Altered Portals officially supports fabric for Minecraft 1.21. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Altered Portals – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Altered Portals consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Altered Portals with just one click on your server.