You can download this free game called Unrailed! while it's still on sale. Log into your Epic Games account or sign up for one. Add it to cart and go to checkout. No need to enter card. It's currently free. It will be added to your library for you to play anytime.
Unrailed! is a chaotic online and couch co-op multiplayer railroad construction game where you work together with your friends as a team to build a train track across endless procedurally generated worlds. You can plough your way through the world and challenges. Upgrade your train, get an atomic engine, or choose from a vast range of options.