In order to make a lot of money in Boom Beach, you will need to spend a lot of time playing the game. With an ad-supported mode and a free mode, you will be able to make some serious cash. If you want to make a lot of money quickly, though, you may want to consider paying for an ad-free mode. In either case, you will need to spend at least 10 hours playing the game in order to make a real profit.