Can we make money from online game?

If you are looking to sell stuff but you don't want to invest, I either recommend that you play Maplestory or your play Runescape. Runescape won't work very well anymore because of the trade limit, but there are ways to get around that (go into pvp world and then just have the other person come, also be in a deserted area, and just have them kill you, but make sure you only have what you need to trade on you and that will only drop.) But, on maplestory you can sell tons of stuff whenever you want and most sites out there for Maplestory are legit, except for runescape sites, a lot of the time they can be scam.

well i dont know

yes, you can sell game currency from free games like second life and like IMVU. just go to their sites secondlife. and IMVU. download the games and play them and earn from the games then you can sell the game currency to sites like anshex. anshex is a game currency website where you are able to buy and sell game currency. i just sell to the site so that i can earn money. you can sell 100,000 IMVU credits for $36.00 USD and they send money to your pay pal. if you have any questions on how to earn free game currency quickly or any help for anything else then i can help you. just add me and PM me for details.

I dont know about buying and selling equipment, but you can earn money by playing games:) Feel free to check my profile friend:)

You can make money for selling items in games like WOW...