The game (Raft) should have more added to its mac  game, it is somewhat boring the way it is when their is no updates for mac. I play mac on my school computer and when i get my own computer i will buy it please email me at austencooper@yahoo.com the amount of money u would like me to donate. i may be able to donate 5$ each week on thursday. (Back to the main topic) The mac doesn't allow multiplayer and doesn't get the updates nor has been updated could you please work on getting the update for mac up please?

As stated on game page, Itch.io version will no longer be updated and all developers efforts are going toward commercial release on Steam aimed to happen next year:

"Raft will release on Steam Early Access in 2018 with multiplayer, reefs and much more new content and features! To be notified when it launches, please visit our Steam page and press 'Add to your wishlist'! We are not releasing any new updates on Itch.io as we are working towards a Steam Early Access release. To read more about this announcement, visit our Blog!"

Also from Raft FAQ on Steam page:

“Will Raft release on Mac and/or Linux?”
We are first and foremost focusing on Windows. We would like to support more platforms in the future but due to certain parts of the game making porting more difficult we cannot at this time give any promises.