[iLoveOncall]

You cannot reserve the phrase "Ticket to Europe". However, you can make a very strong case that a video-game named "Ticket to Europe" infringes on the copyright of your video-game named "Ticket to Ride: Europe".

I would strongly recommend you to change the name of your game before you face such issues (well, you may have already according to this thread), because if your game launches and is at all successful, you will 100% face legal action.

[pasc1878]

IANAL but I think it is not copyright that is here but Trademark. Copyright would be copying the game but even then I think you can use the same rules but not the same visual look.