You can join gangs such as Ballas, Groove Street Families, Los Santos Vagos, Triads, Bikers etc.
You can trade shares on Stock market BAWSAQ which is a feature from Grand Theft Auto V.You can gamble at casinos (Black Jack, Roulettes, Slot Machines, Texas Holdem, Wheel of fortune) and you can also win a car everyday from the casinos.Video game QUB3D from Grand Theft Auto IV with weekly challenge for players to earn money.21 unique Heists to do which is a feature from Grand Theft Auto V.Amazing events every 15 minutes (Hide 'n' Seek, Death Run, Fallout, Warzone, Runners vs Infernus and much more).You can purchase a Car workshop where you can buy damaged cars, repair and add parts like Nitro, spoilers, wheels etc.You can purchase a Warehouse where you can buy and sell crates, electronic goods, jewerly etc.You can start CEO challenges with your friends through the use of the Organization feature (Grand Theft Auto Online Feature), share cuts, do CEO Work and use special vehicles.You can crack Safes around San Andreas and earn money or drugs for doing so.