Video guide:
This game has EAC - Easy Anticheat. You need to disable it and launch the game without it for the trainer to work.
First start steam in offline mode to avoid possible bans and game connecting online.
Next, go to
[Steam Install Folder]\steamapps\common\SWORD ART ONLINE FATAL BULLET
Backup SAOFB_Launcher.exe in case you want to play with EAC online again and replace it with the file i have linked. You’re good to go!
SAOFB_Launcher.rar (141.1 KB)