How do You Get a Guest Pass?
The Traveler's Package for Black Desert Online includes one free guest pass for players to give to their friends or guildmates so they can try the game. The Explorer's Package comes with two guest passes.
Each guest pass entitles the redeemer to a 7 day trial of the game. After the trial is over, to continue playing, you must buy the game.
Once you have bought the game, you can play for as long as you like. There are no subscription fees. There is, however, an item shop, and you can buy some cosmetic items as well as "quality of life" improvements that make certain tasks in the game more convenient. It is possible to play without purchasing any of those items, and you can earn most things in game by investing time and effort instead of cash, so the game is quite balanced in that respect.
Redeeming the guest pass, however, can be a slightly confusing experience, since as you can see there's no obvious link to do so on the store page:
Obtaining a Guest Pass
If you know someone who is playing Black Desert Online, ask them to give you a guest pass. If not, join the Black Desert Online official forums and post in the Guest Pass thread there - take the time to answer all of the questions in the first post, and with luck, someone will give you a pass. If you decide you like the game and buy a copy of it, then return to the thread and give your guest pass to someone else in need.
Redeeming Your Guest Pass
Once you have a guest pass, go to:
To redeem it. Copy and paste the code (including any hyphens) into the box. You will be asked to create an account, and then will be given a link to download the launcher. Run the launcher, and let it patch the game.
Note that the game is around 30GB in size, so you will need a lot of hard drive space to install it.
The good news is that if the installation fails for any reason (you lose internet connection, or run out of hard drive space), then it will retry the installation from where it left off when you re-launch the game. You won't need to redownload everything. It's still a good idea to try to make sure you have more than enough space to install the game before you start the patcher, however, since performing a file check can take a while.
Once the installation and update has finished, just enter the email address and password that you used to install the game, and log in. You can now create an account and start exploring the game. Have fun!