Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - General Steam Code to GoG Code.

The only codes that can be converted to GO is the ones you have on Larian Vault if you are kickstarter backer.

I think people don't realize that if you are a kickstarter backer and have a the physical collector's edition then you actually get 4 copies of the game + 2 copies of the DLC:

1. One on Larian vault from the original beta. Can be converted to GOG.
2. The DUO key on Larian vault. Steam only.
3. The Steam key on the back of the manual
4. The Steam key on the extra leaf of paper than came in the box