4. GTA
As far as sandbox games go, the first mainstream example that comes to mind is usually Grand Theft Auto, and for good reason. It's colorful environments across a series of games that faithfully recreate the great American city's to act as your playground continuously deliver, with original events and reactions from NPC's to events that, while repetitive, still feel
right for the circumstances. With GTA V soon to be released, boasting a map size larger than IV and San Andreas combined the space available for a rampage or mission progression should prove to be entertaining.