Non-MacOS users need not apply. But if you like little choo-choos, you might want to get access to some fruity machine just for this 3D model train simulator (3Mb .SIT file). Need fresh air this weekend, SO keeps calling just to see if you're still alive, got plenty work piling up? Then DON'T look at this nifty toy. You've been warned. This post goes in loving memory of someone I know would have really liked it.