I installed this game completly new and have the newest patches, but it still does not detect the Fallen God and Soul Harvest DLC. 1 Year later it still does not detect.

Are Developer even supporting GOG Version? 1 Year later still same problem.

The developers are informed about this, but sadly they seem to lack resources to fix this based on this specific plattform.
Please manualy place all 3 games in your reforced folder to unlock all campaigns in one installation folder.

The feedbacks are mixed sadly on this. So i guess no critical game crashes or issues anymore but no solid answer on this feature now working as intended on GoG.

They are informed it is true and they will do nothing. They just treat gog players like crap.

A studio that I added to my blacklist or I will no longer buy their games. Because in addition to spellforce 3, they don't even want to update spellforce 1 to 1.61.

I have no more informations about SF3 right now, but on the SF1 part i can tell you that the newest versions of SF1 only get updated on the Steam Test branch of the game and only when there is a stable full version reached, that will be ported over. I just hope it will be done before the 20th anniversary of SpellForce TOoD next year.

No news.
really doesn't care about gog players. Gog really needs to banish the studio from the store.

You got any information on the planned / TBA content of the TOoD 20th Anniversary edition? Will there be a physical release?

I got the physical 2003 Spellforce TOoD DVD-cover release on my shelf, and same for the BoW and SoTP releases, and I wouldn't mind a physical 8th copy of the first trilogy to match. :)

But yeah, please make sure the latest patch is included with that release - AND at least most of the bugs are fixed. ^^

I posted the same question on Discord few hours earlier today and the issue is in,deed still there.
Someone answered with this link:
https://www.gog.com/forum/spellforce_series/solved_starting_expansion_campaigns_from_the_base_game

Did not try it yet.