We worked for The CFF/SBB! The Swiss main and only train company !
Léman Express Challenge was a Promotional Game for the innoguration of the new Swiss train line, Léman Express https://www.lemanexpress.com/

It was a fun and interesting little breather between Persephone and Captain Velvet Meteor. The goal was to make an app limited in time, working as a concours to promote a new train line.

With a little explanation trailer