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imLinguin / comet

Open Source implementation of GOG Galaxy Communication Service for SDK bundled with GOG games.
GNU General Public License v3.0
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Online Multiplayer Compatibility Information #28

Closed kevin-wijnen closed 2 months ago

kevin-wijnen commented 4 months ago

As I've not seen it mentioned here anywhere yet, except for tangentially related questions (for #11 and #14):

Is there any information available on GOG Galaxy's multiplayer capabilities being compatible with Comet instead of GOG Galaxy (i.e. No Man's Sky)? Or is that out of scope for the project?

imLinguin commented 4 months ago

It's safe to assume that multiplayer will work everywhere where it's implemented. Related features are handled by the SDK itself and work after the initial authorization call to comet.

EthanHarp commented 3 months ago

I was wondering if there were any plans to implement the encrypted_auth_ticket api?

imLinguin commented 3 months ago

if you mean this https://docs.gog.com/sdk-encrypted-tickets/?h=encrypted#retrieving-the-encrypted-app-ticket

I believe that works without communication service involvement

EthanHarp commented 3 months ago

Ah understood, thanks

kevin-wijnen commented 2 months ago

Getting back to this after having bought No Man's Sky on GOG: multiplayer definitely seems to work! I think the issue might better get closed then; with perhaps a pin in case others have a question about multiplayer support.

kevin-wijnen commented 2 months ago

Including reference to this issue as well #36:

Since 0.1.1, more games are working with online multiplayer (in particular: those using OpenID).

szszoke commented 2 months ago

I have been using comet with No Man's Sky on both a Steam Deck and a desktop PC and it seems to work fine.

I was able to see other players on the Anomaly, see their chat, my achievement and play time also registered.

I used the shortcut script from the Steam Deck instructions.

ssokolow commented 1 month ago

One thing that I think could use a FAQ entry is whether it's possible to implement an offline/LAN-only fake of the GALAXY matchmaking server for games like Dungeons 2 where some people got used to having a non-GALAXY, LAN-based multiplayer option and then the devs patched it out.

Currently, attempts to search for such a thing lead to announcements for Comet and then eventually to here.

(Note that I personally don't need the rest of what Comet does because it's already work enough to use stuff like Firejail or router-level firewalling to make sure my GOG downloads aren't secretly bearing archival time-bombs like "crash if we can't connect to Unity analytics".)

imLinguin commented 1 month ago

I think what you are looking for is https://github.com/grasmanek94/UniverseLAN

However it seems that Dungeons 2 has custom implementation for networking, thus making it impossible to force LAN

Comet acts more like GOG Galaxy for games and handles high level things: authorization, loading leaderboards etc... while the game's SDK does the actual heavy lifting.

ssokolow commented 1 month ago

Thank you. Even if it doesn't fix Dungeons 2, having that answer here is helpful to anyone who winds up walking the same path I did to find an answer.

Do you know if anyone maintains a list of GOG games which use UniverseLAN-incompatible netplay implementations?

EDIT: I hadn't scrolled that far down the README. Please excuse my "first good sleep after a week of terrible sleep... time to let it all hang out!" brain.

EDIT 2: Huh. The reply wasn't there when I posted my first edit. Is GitHub's support for showing replies without reloading the page bogged down?

imLinguin commented 1 month ago

Readme has that list. Includes both games that do work and those that don't https://github.com/grasmanek94/UniverseLAN?tab=readme-ov-file#list--status-of-games