Story Missions
Walkthrough of all story missions in Grand Theft Auto IV.
Walkthrough of GTA IV
There are several things you should know before start playing Grand Theft Auto IV: Best Tips Before Starting. Also, if you play on PC, read this: Graphics Settings in GTA IV.
Random Characters
Random characters are minor characters you can find around Liberty City. They provide you short missions, most of which are necessary for 100% completion of the game.
Roman’s Taxi Missions
These missions require the player to drive passengers to specific locations within a time limit for a cash reward. There are ten of them in total.