How exactly does the Paypal sandbox work? It says Card Hunter's Test Store and www.sandbox.paypal.com, but it still asks for my Paypal account info and has a price > 0.
It's basically a pretend paypal store - or rather, one to test stuff for people that use paypal functionality in their games and software. Nothing is deducted. https://forums.cardhunter.com/threads/free-pizza.1276/#post-15743 - some useful info.
No, and you shouldn't. Just create a new developer paypal account for sandbox use. I'm not sure whether you can use the same email address as your real account. I used a different one. EDIT: I just remembered you can't use the same e-mail address as your real PayPal account uses. I tried it when I created mine some months ago and got a weird error.
Follow the instructions Pengw1n linked above and you won't need to enter it. A fake card and bank account will be automatically created for the developer account. There was one difference to the instructions when I did it, just accept the default and it's ok. It might have been "bank verified" had to be answered yes, but it didn't cause any issues.
Are the instructions above still valid? I'm (finally, months later) trying to follow them, and it sounds like only developers are allowed to have test accounts.
I managed to get one set up, but it took several tries. The 'Buyer' button wasn't present at the point I was supposed to click it (tried 4 browsers), so I went through lots of help pages and other attempts. When I finally got one that worked, I couldn't remember how I did it.
I'm not at all sure you're allowed to share PayPal sandbox accounts. If not, it would be a really bad idea for BM to break the rules. Does anyone know whether PayPal offers the possibility of a shared sandbox account? Mine has worked fine for months and I recall no special trouble setting it up. There was only one deviation from the old instructions (details in my earlier post, #8).
Do you remember if you created a developer account first? EDIT: Tried going into www.sandbox.paypal.com instead, and it's still demanding a good password and full contact info. Why can't PayPal create a bunch of test accounts with permanent balances for people to use?
I created a developer account initially, but deleted it (which was a pain to find out how to do) before I finally got a buyer account that worked.