What creature gives of a good amount of money in runescape?

Answer 1

No creature gives much cash. Cows give good money, in form of cowhides and raw meat, which you can easily sell at the Grand Exchange. Cockroach soldiers now and then drop a valuable rune scimitar, but it takes a high combat level, and lots of food, to combat these powerful cockroaches. I would say, stay with the cows. You might also consider other ways to get money, for example, mining, woodcutting, or fishing. For example, at current prices, mining clay you can get about 60,000 - 80,000 coins an hour.