Many players in blockchain games at this moment are after a common goal — to earn money. While the ways to do so may vary, from collecting rare items and selling them on secondary marketplaces to earn Ethereum, to defeating other players in PvP battles to earn in-game cryptocurrency. However, most NFT games do not offer rewards in Bitcoin, but rather in the game's own asset which could then be traded into Bitcoin on centralized exchanges (CEXs).
In short, yes — you could make a tidy sum playing NFT games. While you've probably heard of the news of people in Philippines earning a reasonable wage playing Axie Infinity, the cost to start playing the most popular play-to-earn game — Axie Infinity — has reached at least a few hundreds dollars, and new players require three Axies to start playing. To start earning, you would have to recover your upfront cost, which could take anywhere from 50 to 80 days, before earning between $8 to $40 depending on their Axies.