Hi I'm new to GOG and just wanted to confirm something. Both my brother and I love Simon The Sorcerer 2 and I want to know if I download it can I share it with my brother?

Of course you can. If it's in the family, you can share it, no problem. It's almost like you would play it on the same PC, but to alleviate the inconvenience you can install it on both yours and your brothers PC.
Oh, yeah, welcome to GOG! We hope you'll enjoy it here.

Actually, technically your brother should buy his own copy, since you're really only allowed install the game on PCs that are directly owned by you. However, if you both live in the same house and both PCs are there, I don't think the software police are going to be busting down your door.

To offset this, if you want to be karma neutral, just buy an additional game.

Ah ok thanks guys. We do live in the same house but I guess it works out @ only 4 Euro per person. Small price for an incredible game.