Portal: Cooperative

The official group for Portal: Cooperative

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Discord [discord.gg]
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RECENT ANNOUNCEMENTS

Portal: Cooperative Beta 5.0.0 Has Released

February 16 - Mandrew | 0 Comments

This update adds new maps and improves existing maps for the normal 2 player map set. See the moddb article for more information.

New SDK Update Causing Issues

February 18, 2025 - Mandrew | 0 Comments

A few hours ago, Valve released an update to Source SDK Base 2013 Multiplayer. Unfortunately it seems to cause some issues with Portal: Cooperative and other mods that rely on the SDK Base.

To fix Portal: Cooperative or any other mod that relies on Source SDK Base 2013 Multiplayer, right click Source SDK Base 2013 Multiplayer in the steam library, click Properties, click Betas, then select the beta branch to previous2021 - Previous Build.

I'm going to be working on updating Portal: Cooperative to the new code base soon so this extra step isn't necessary.

I'll try to keep you all updated on what's happening if anything changes.

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BlackWhale29 Sep 2, 2025 @ 2:46pm

Okay, Thank you.

Mandrew

Sep 1, 2025 @ 7:05pm

@BlackWhale29
You'll have to use something like Radmin VPN or Hamachi. You can also port forward.

BlackWhale29 Sep 1, 2025 @ 6:08pm

Hey, how do you join people in this game? I wanted to set up a private server so me and my friend can play the first game of Portal together, but we couldn't figure out how to join each other, can you help us out?