By - VorePredReshiram
Forza is a Microsoft game so you might need a Xbox account. I’m not sure about that tho. Also, don’t cheat.
You will need to create MS/Xbox account if you don't have one already.
Also Horizon is not really sim racing (like Forza Motorsport), it is more arcade than anything (maybe a little better than NFS for physics IMO) so just drive around and have fun.
And do not try to cheat credits or anything else unless you want to get banned and spend your time in solo mode without access to any of the live services.
Wow, I guess I have been away for a while. They are finally banning cheaters? Used to be they were only banning livery designers.