Lead a caravan across the era of your choice, set the pace, ration supplies, and trade only for goods that truly belong to the time.
Pick a historical era, then lead your caravan leg by leg across the route. Each stage you choose a travel pace and may spend coin on supplies, but anachronistic goods are offered as decoys and rejected. Manage your resources across the whole journey to arrive in good standing.
Crossings teaches period detail by rewarding era-accurate trades on a long journey, so history is learned through the choices you make.
Leading a caravan leg by leg, choosing pace and supplies, is the trading-route journey, and the Silk Road is its archetype.
Offering anachronistic goods as decoys is the original test.
The decoys do the teaching. Knowing that a commodity existed is easy; knowing when it became available along a particular route is the actual historical question, and buying something that had not reached that part of the world yet is a mistake you can only make if you never asked.
Crossings is an original journey game that teaches period detail by rewarding era-accurate trades. It's free to play in your browser with no download.