I got cd boxes of NWN2 and all 3 expansions. And I want to activate them on GOG or other digital store (Steam, etc.). Unfortunately they don't accept my keys.

Is there a way to redeem GOG version of the keys? Or could you name other store where cd keys might be added?

No digital store front is going to accept your retail keys.

Some publishers would give keys in exchange for original CD keys like 10 - 20 years ago, if you contacted their support and asked nicely. I did it with a few EA and Sega games for Origin and Steam, but I highly doubt that's going to work in 2025.

You already posted this yesterday. The answer hasn't changed.

You can't do this.

Those are NOT Steam or GOG keys, They are keys for the Physical copy and they are more than 10 years old.

Install the CD and use the keys where requested during installation. That's all you can do with them.

If you want the game on digital storefront, you have to buy it again.

Some people have truely strange ideas.

The answer is alread in the title. Its a CD key. Not a GoG key.