If you want to play the open beta for New World that will arrive on September 9, you will need to request access through the Steam store page using the Steam Playtest tool.
Also, during the open beta, anyone will be able to download the game by using the Steam Playtest tool at the official steam store page for New World.
That said, simply head on over to the official store page, and you will be able to gain access by finding the option to request access at the Steam store page. Doing so should allow you to play the game shortly after, once access has been granted to your Steam account.
Related: When is the New World open beta?
Once you have access, you will be able to experience everything there is to do in New World in a short amount of time, as the beta will end in three days. In this time frame, you will be able to craft weapons and armor using the in-depth crafting system, level skills, and farm monsters.
Players will also be able to experience the vast PVP system and events that will take place often during the full release of the game.
Along with that, you may also be able to experience the end game content known as expeditions, where players will be able to take on large dungeons for rare loot and more.
Check out some of our other guides for New World!