Yes, PC and Xbox players can play together in Brawlhalla.
There are a few crossplay players to Brawlhalla. The game is available on PC, PS4, and Xbox One, so players can play with each other regardless of what system they are using. There are also some tournaments that allow crossplay.
There are a few ways to play PC players on Brawlhalla. The first way is to use the “PC Player” filter on the online matchmaking screen. This will only show PC players in the matchmaking queue.The second way is to join a PC-hosted game. To do this, go to the “Find Game” screen and select “PC Hosted” from the game type filter. This will show all of the currently available PC-hosted games.
Brawlhalla is a free-to-play game, which means that it is supported by in-game microtransactions. Your friend cannot join because they do not have a Brawlhalla account.