Source-checkedQuality of life & UI

Seamless Portals

by Meetric · for Garry's Mod

Seamless Portals This is a mod that adds a entity called the Seamless Portal, and a functioning portal gun! You can spawn the Portals in the spawnmenu, using the portal gun in the weapons tab, or…

497KDownloads
4d agoLast updated
Steam WorkshopSource

About Seamless Portals

From Steam Workshop

Seamless Portals This is a mod that adds a entity called the Seamless Portal, and a functioning portal gun! You can spawn the Portals in the spawnmenu, using the portal gun in the weapons tab, or…

Seamless Portals

This is a mod that adds a entity called the Seamless Portal, and a functioning portal gun!

You can spawn the Portals in the spawnmenu, using the portal gun in the weapons tab, or using the portal creator tool.

(This mod is perfectly multiplayer compatible!)

"Why is this better than 'Doors' and other portal gun addons?"

  • Perfectly Seamless™
  • You can enter portals directly on the wall & floor
  • Prediction for players with high ping (still seamless even with 500+ ping)
  • Floor extrusion if your player gets stuck in the ground
  • Black skybox fix (see other portal gun mods to know what this means)
  • Toolgun goes through portals
  • Includes non-janky portal gun
  • Includes some tools to play with
  • 2-Way coupled prop interactions
  • Shrinkinator support
  • Linking a portal to itself

Bad Framerate? Try editing these console variables:


seamless_portals_drawdistance
seamless_portals_refreshrate
seamless_portals_maxrender

Want to add portals to your map? See the Github for help with implementing them!

Github link: https://github.com/meetric1/GMod-Seamless-Portals Discord: https://discord.gg/cmQvg2AHgP

Credits:

  • Fafy2801 for finding a fix for the black skybox
  • PeteBroccoli for improving the networking system
  • WasabiThumb for fixing a black halo glitch & adding traceline functionality
  • WasabiThumb for also making a 'portal creator & linker' tool
  • ArsWarsAlmaz for hammer support
  • dvdvideo1234 for making accurate portal gun surface angles & some microoptimizations
  • maxmol for adding portals to PVS
  • Mikey for some QOL changes to the Portal Creator tool

Highlights

From source data

Footprint

Rated a light load on a server.

Last update

Its author last shipped an update 4d ago.

Seamless Portals on Nxeon

From our catalogue
One-click install
Supported on Nxeon Garry's Mod servers. We download it from Steam Workshop, place it, and restart the server.
Server load
light
Smallest plan we suggest
Garry's Mod — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
2026-10-12, released 2026-10-12

Game versions by loader

LoaderGame versionsNewest
Workshop

From 3 recorded builds of Seamless Portals.

Recent builds

BuildReleasedGame versionsLoaders
2026-10-122026-10-12n/aWorkshop
2026-10-062026-10-06n/aWorkshop
2026-09-122026-09-12n/aWorkshop

Run Seamless Portals on a Garry's Mod server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on Steam Workshop as “QoL”

Quality of life & UI

Small conveniences, tweaks and interface improvements players notice straight away.

Compatibility

Game
Garry's Mod

Verified at the source

  • ✓Steam WorkshopOfficial listing, checked 2026-10-12Open ↗
  • ✓AuthorMeetric, as published on Steam Workshop
  • ✓LicenseNot published by the sourceFree

Seamless Portals, answered

Generated from the mod’s own source data.

Is it free?

Yes. Seamless Portals is free to download from Steam Workshop.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Seamless Portals on a Garry's Mod server.

Deploy in about a minute from $3.99 a month, then add Seamless Portals in one click.