Talk:GAME Update V2/@comment-2601:647:4901:210F:D58E:3156:8B32:70A7-20180820070415/@comment-104.157.143.163-20180825050945

It depends how far into the game you've advanced.

I've only gotten as far as Forest 6. Through to that point, the best gold grind comes from City 16.2, 17 & 18. They give ~147 gold per point of energy. That's about 7 gold/energy better than the next best options.

You will almost certainly need to spend more gold than you win back when trying for tournament gold, so that really doesn't help your bottom line.

If you've gone farther than I have, there may well be missions that give you a better gold ratio than 147:1. Wherever you decide to grind, make sure that you picked a mission that you KNOW you will win or you're wasting energy and time.