IMPORTANT: Read the announcements section in the Open Fortress Discord. They keep adding new versions of OFToast and also new download links for different regions. If you want to keep up to date you should join the discord.
There seems to be a new verify option with the newest version of OFToast. Use this if you are having issues regarding missing textures, joining servers, and can't join any servers.

IMPORTANT: OFToast will be used to update the game in the future so keep it in a place you will find again. Run it again if you can't play online anymore. (You will not be able to join servers when your game is outdated.)

Timestamps:
00:05 - Download TF2 and SDK Multiplayer
00:36 - Website pls??
01:13 - Download the Open Fortress launcher
01:27 - Start the Open Fortress launcher
01:58 - Restart Steam

There seems to be a new verify option with this version of OFToast. Use this if you are having issues regarding missing textures, joining servers, and can't join any servers.
Download the new Open Fortress Launcher (Windows version): (might be outdated, check the Open Fortress discord for the newest versions)
https://toast2.openfortress.fun/toast/oftoast-0.2.4.exe
https://toast-eu.openfortress.fun/toast/oftoast-0.2.4.exe (EU Server, Germany)
(Linux version can be found on the website or in the Discord, links below)

Open Fortress Discord:
https://discord.gg/mKjW2ACCrm

Open Fortress Website:
https://openfortress.fun/

Here is a link to the old tutorial if the launcher should not work:
https://youtu.be/Z4CD1lVAg8M

There seems to be a new verify option with the newest version of OFToast. Use this if you are having issues regarding missing textures, joining servers, and can't join any servers.