The Drunken Lizard Pub

I plan to buy Book 1 in the near future. I saw the links to purchase it are specific for windows, linux and mac.

Does it mean that the registration key is not valid for all 3 versions ? If I plan to play on Windows and Mac, do I have to buy one copy or two ?

I know that Book 2 works this way (one key unlocks all 3 versions).

I know it's available on Steam, with Steamplay, but I'd rather buy it directly from Basilisk, so that the developers get a max revenue out of it.

Thank you, and sorry if the question has already been asked (I searched for it but didn't found it).

Yes, one key unlocks any of the versions. With Book I, since there is a separate demo and game file, you will need to e-mail BW with your purchase information and which version you already downloaded and he can activate a link for you to download the other version you want.

ok, thanks for the clear explanation.

Wouldn't it be a useful addition to the FAQ of Book 1 ?

Book I doesn't use a registration key, so no, the information would not be useful for the FAQ.