relate the most dangerous game to the real world? could this happen? why or why not

No this isn't a real life situation in any way. Falling off a yacht and ending up on a place like "Ship Trap Island" just doesn't happen. Zaroff lives in a giant gothic mansion and hunts people all day for kicks. He basically lives alone; Ivan isn't much of a talker. This is what is known as escape fiction, it is not rooted in reality.