More Everything, Limited Edition Items, and Trade Currency
Make more clothing & weapons. Make limited edition items that can be sold on a marketplace for profit. Make duplicates of items with special design. Also, you would have to make more enemies. Stronger enemies. To keep up with the weapon strengths. Also, you should be able to turn gold into plat. (Say, about 1000g=1p?)
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Zed K
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Zed K commented
Oh, and make friends lists, and trading GUI