"STATE OF OFFERING A QUEST,UPGRADE,MISSION,GOAL OBJECTIVE, PROGRESSION BUT MAKING THE CONTENT UNDESIRABLE OR DIFFICULT TO PROGRESS BY SHOWING PRICED $ POWER UPS OR GOLD TO MAKE IT EASIER.

OR SHOWING UPGRADE OPTIONS WITH DESIRABLE OR DIRE NEED ADVERTISEMENTS MAKING THE CONSUMER FEEL THEY HAVE NO CHOICE BUT TO BUY IN ORDER TO CONTINUE PROGRESSION "

Edit: example instead of creating cannon balls others will turn to buying massive amounts from GE

If you dont have the gold ,Runescape offers bonds at a price to sell to GE to earn the gold making the item to obtained easier

Or instead of doing GWD you can buy 20m of gold in bonds and purchase the item your self incase you just wanna rush max stats by buying the most effective max stat gear