We all love open-world games, the sandbox genre alone has a ton of amazing titles. Today, we want to talk about the greatest open-world games ever created; the best of the best! Of course, there is a wide spectrum of what some people would consider a game 'open-world'. We're going to include games that offer an 'over-world' leading to sub-worlds, as long as they offer a variety of things to do within that space (you're opinion may differ). Open-world games come in many different styles, comparing Mario to GTA is damn near impossible, take this order with a grain of salt. Without further ado, the top 100 open-world games of all time!