I have a browser RPG game and I am planning to make the player fill out a captcha every 20 minutes to make sure they're not a bot or script. I have found a couple of advertisement captchas that pay you for each successful captcha filled out. Does anyone have any experience with these? The one I'm looking at now is called Solve Media. If anyone can tell me how much money they made per captcha and with which network, that would be extremely helpful!