If you find your mouse cursor isn't appearing when you are in game, please try the following:
First of all complete the following three steps below in the order listed.
If this does not resolve your issue, please try launching the game in Windowed mode, details on how to do this below:
- Open Steam and access your Games Library
- Right-click on Football Manager 2018 -> Properties -> General -> Set Launch Options
- Type this in the box: -small_screen -windowed
- Click on OK, close the window and launch FM18 through Steam
Also make sure your graphics card drivers are fully up to date as shown here - https://community.sigames.com/faq/football-manager-2018/134_how-to/138_pc/how-to-update-my-graphics-card-drivers-r404/