STEAM GROUP
Portal: Cooperative P1CM
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STEAM GROUP
Portal: Cooperative P1CM
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Founded
August 16, 2023
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ABOUT Portal: Cooperative

Portal: Cooperative

The official group for Portal: Cooperative

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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.

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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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25 Comments
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.