Why Fallout 3 is worth playing before Fallout 4

Bethesda brought back and revived the Fallout universe by introducing to us Fallout 3. Fallout 3 was and is one of the most amazing games to be released in gaming history and it was seen as game of the year by many gamers. Fallout 3 is known for it’s unique character leveling system along with almost unlimited gameplay, hours can be spent into this game and still be intriguing and even after beating the game it still has replay value. But what exactly makes this game worthy of playing before you get into Fallout 4?