Yes! This is one of the main aspects of the game. You earn DEC, which is a crypto currency and can also earn cards, that are NFTs. With those assets you can earn SPS, through daily airdrops - SPS is another crypto-currency. This is only a very short version. There are many other aspects inside the game, through which you can earn cryptos and NFTs (daily/season quests, guilds, packs, and coming: land). It is quite complex to understand all aspects of it, but I find it easy to get started.

There is a lot of content in C/Splinterlands on this game, you should definitely check it out, if you are interested. I am also doing regular post on Splinterlands. If you check out my blog / all posts section you can find dozens of posts on Splinterlands.

And I find that the game is fun ;-) Not only about earning money.

Cheers,
@andy-plays