FMRTE 12 adopted a license model, where a free version is available, but a is required to save edits. This shift was necessary to support the ongoing costs of website hosting and the significant amount of free time dedicated to the project. Users who obtain a premium license are issued an activation key to unlock these full editing capabilities.
FMRTE 12, or Football Manager Runtime Environment 12, is a popular tool used by Football Manager game enthusiasts to edit and customize various aspects of the game.
If you want to edit your Football Manager 2012 database without risking your digital security, several free, community-vetted alternatives exist. The Official FM12 Pre-Game Editor