Hi all. As suggested by the support, i'm posting here my issue.
Windows 10 computer. Steam acquired game. When launched, executable starts but stays there.
Analyse wait chain for galciv.exe from task manager: galciv.exe is waiting for another process (svchost.exe).
Always from task manager, selecting svchost.exe (corresponding PID from wait chain) and Go to service(s): RpcSs, RpcEptMapper.
Conclusion: it seems that galciv.exe is waiting for something happening from RPC.
Hope that anyone has the answer.