crunchyOwl: I would like to propose a new "sub-category" for this thread,
moddable singleplayer-games.
Let me explain: There are some games which can be bought on GOG which are single-player games, but can be modded to have DRM-free network-based multiplayer. All the mods should NOT be requiring any DRM/login or Steam to be added to this list. Entries should at least include the name of the mod here. URLs can change, so I would propose just to stick with the name in this thread, searching for the mod is usually very easy.
New proposals for entries (I have tested some of them, but as far as i know all mods allow direct-ip and are DRM-free):
- Caveblazers (moddable with Caveblazers Together)
- Elder Scrolls III - Morrowind (moddable with TES3MP)
- Fallout: New Vegas (moddable with NV:Multiplayer)
- Hollow Knight (moddable with HKMP)
- Jagged Alliance 2 (moddable with Jagged Alliance 1.13)
- Kerbal Space Program (moddable with Luna Mod or DMP)
- Nox (moddable with OpenNox)
- Nuclear Throne (moddable with Nuclear Throne Together)
- Postal 2 (moddable with Sven Co-op)
- Rimworld (moddable with Rimworld Multiplayer)
- Rollercoaster Tycoon 2 (moddable with OpenRCT2)
- Settlers 2 (moddable with Return to the Roots)
- Spelunky (moddable with Frozlunky)
- Tomb Raider 2 (moddable with Tomb-Raider-II-Multiplayer-Mod)
- Undertale (moddable with Undertale Together)
Hope this helps someone. <3
Thanks. That is interesting. I'll add it to my second post in this thread, because the total length of posts is limited on GOG. So I don't want to add another growing list to the first post. But the information is surely good to have.