Steam Refunds

Depends on the indie.

I think that tax is called paying for an internet connection. Think of it like this, if you're paying for a faster connection it's like paying for express shipping.

How many times I can buy, play for 2hours50minutes and refund?

Their terms are vague. If they think you're abusing the system you'll get in trouble, but they also accept people refunding a game if a sale for the game started right after they bought it, so they could buy it for the cheaper price.

It's just pirating with more effort put into it. Nothing he does is rare or new.

...

are you fucking autistic or something
just write "it wasn't fun and this is why: blah blah blah. can i have my money back thanks"

Stop.

Technically zero, the rule is LESS than two hours. 1 hour 59 minutes max.

name one indie studio besides croteam that isn't cancer.