In one of my games as Germans I founded a city with 4 iron tiles around it. I was already planning who to trade it to and how much to ask for it, when all my dreams were ruined. The four iron sources disappeared in four turns.
Maybe the mechanics should be changed. Instead of random, disappearing could depend on your science level (workers using the resource more efficiently), or at least show approximately how many turns there are till the resource disappeares.
Or if that turns out to be not so good an idea, then the resource shouldn't disappear in at least 10 turns after you find it, like with my only coal resource that disappeared one turn after I discovered steam power.
What do you think?
Maybe the mechanics should be changed. Instead of random, disappearing could depend on your science level (workers using the resource more efficiently), or at least show approximately how many turns there are till the resource disappeares.
Or if that turns out to be not so good an idea, then the resource shouldn't disappear in at least 10 turns after you find it, like with my only coal resource that disappeared one turn after I discovered steam power.
What do you think?