In Forsaken World we have 2 currencies: Soul Gold and Gold Coins this is a guide for the ladder:
First Encounter I had with gold coins was through turning in the carnival tickets.
Quest: Game Token Exchange.
Location: (Obtainable through Meid @ Rainbow Island).
Instance: (Nightmare Carnival)
Requirements: lvl 15+. (Doable Tuesdays, Thursdays and Saturdays).
Profit/Reward: Turning in Tokens for gold Coins.
Quest: Run Lola Run!
Location: (Obtained from Galantor Manny @ Almeda Park).
Objective: Race against lola but keep your proximity buff up @ the end.
Reward: 1-3 Dimstar Debris (if your under lvl 40) and Recharging Star
Shard (if your above lvl 40) for each completed quest (Can be completed
upto 5 times a day.)
Requirements: ?
Profit: Sell the shards @ Auction House.
Quest: Midas Touch.
Location: (Obtained through Mecury Chairman Christopher @ City Square.)
Objective: Various tasks like dilevering packages within in 4 mins to persons @ FH.
Requirements: You need to be lvl 30+ and have 1 mercury statuette + 1 alchemy Proxy on you to accept this quest.
Profit/Reward: 4-7g in either gold coins/mecury coupons. + the chance of a bonus bound gem / 5 recharging Star Shards.
Last but not Least: Glistening Lowlands.
Location: Glistening Lowlands (Instance).
Objective: Smash crystals together and summon the Crystalized Demon + defeat him.
Requirements: You need to be lvl 40+ (doable once a day).
Reward: Gembox containing 1 lvl 1 gem.
Profit: Sell the gembox for 4-5g @ auction house or try your luck.