In the words of William Wallace: FREEDOM! That's waht the sandbox games here at Silvergames are all about. These allow you to do whatever you want, whenever you want and however you want.
With games like GTA or Minecraft the so-called open world genre became the darling of the gaming community. Instead of submitting to the rigid structures of traditional video game designs, you can play around any way you like. The word is taken from the experiences of small children who get to sit in their sandbox and play freely without worrying about rules or limits. Some sandbox games allow you to explore your own creativity or construct things, but that doesn't have to be true for all such games. What they do all have in common, though, is that they give players more freedom and by doing so let their decisions carry more weight in influencing the course the game will take.
The virtual world becomes a playground for a single player and also multiplayer experience, that is unique and special, because every individual player adds their personal touch to the proceedings.