To play the Splinterlands game, you need to register an account with Hive. I did it for free through the application https://ecency.com You will write 10-20 good posts in Ecency and you will earn $10 to buy a book in the Splinterlands game (by purchasing a book you can receive SPS rewards and chests).
Now the book costs 26.6 HIVE.
When you write posts, you can use certain tags and receive second-level tokens. For example, the ALIVE token. These tokens can be sold on Hive-Ehgine or Tribaldex and bought DEC. With DEC you can buy or rent cards in Splinterlands.
This screenshot shows that I earned 69 ALIVE.
I changed them to 2 HIVE on the Hive-Engine exchange https://hive-engine.com/
And then I bought 790 DEC for 2 HIVE.
With these DECs I will be able to buy some entry-level cards in Splinterlands and rent some cards.
Write posts on Hive, earn coins and grow your Splinterlands account. You will enjoy the game and after a few years you will have a very good investment. Well, this is a link to my game in Splinterlands, this is the very first level in this game.
https://splinterlands.com/?p=battle&id=sl_28df6cfb8b70ebaa9d17607281772339