What Is a Play-to-Earn Economy based on Blockchain and NFTs?

The money has to come from somewhere. If fools are buying into a game in a big way then you have a bubble and it will be possible for a few people to walk out with cash... until it is all gone. In one case "all gone" came faster than expected

https://arstechnica.com/gaming/2022/03/how-did-a-hacker-stea...