In addition to the small-scale, tactical combat described above, the game features “World versus World”, large scale combat taking place in a persistent world independent of the main world. Players are able to drop in and out “on the fly” and possess the ability to construct siege weapons, with rewards commensurate with their success. Guild Wars 2 offers eight crafting disciplines, allowing the player to practice two at a time, with a fee for switching. While there are basic recipes to follow, the player can experiment with different combinations of ingredients to discover new recipes.[20] As the game is set 250 years after its predecessor, players are unable to carry over their characters. However, the achievements and honors accumulated by all the characters on players’ Guild Wars accounts. Each achievement earns points which allow confer certain bonuses in Guild Wars 2. The accounts of both games must be linked in order to acquire these bonuses