From TitsRP Wiki

You can join gangs with other players or create your own to unlock special features and abilities.

Level up your gang by earning XP and doing quests. Each gang member’s XP gained will count towards leveling up so it’s important to fill your gang with players that are active and enjoy the grind.

Players earn XP faster by joining a gang and working as a team. Each time a gang levels up it will unlock a new Gang Perk. Every 10 levels a gang will unlock a new Gang Talent. Gangs can declare war with rival gangs.