King's Bounty: Crossworlds provides you with so many different options to play that you'll be entertained for quite some time! First, there is the original game for you to enjoy. It is the exact same as before, if you choose to play it. But if you're looking for more, it's here. There are two new campaigns and an expansion.
The first new campaign is Champion of the Arena. Here, you will play as Arthur and you will be able to choose his class, which will determine his appearance, and you'll choose his banner. Arthur is a mercenary, but this time his client wants him to be a gladiator. His mission is to win 8 battles in the arena and claim the championship belt. It is that belt that his employer wants. You'll be given 40,000 gold to start off and with this money, you're expected to hire an army, buy equipment, buy scrolls, and anything else that you might need. Believe me, money goes quickly. After you win the first battle though, you'll earn quite a bit more and you'll have access to the guilds. You can join as many of the guilds as you want, at once, or even all 9 of them, if you prefer. I don't really recommend that method though as they don't all get along and it can cause you more problems than you want. Eventually you'll win the belt!
The second new campaign is called Defender of the Crown. This time, you go back to playing as Amelia again. After choosing her class and banner, you'll be taken to a whole new world for Amelia. Here, she has to fight new enemies alongside new allies just to pass a test so that she can be called the Defender of the Crown of Darion. Her enemies are the Lizardmen this time, instead of Orcs or Demons. You start with 50,000 gold to hire your army, buy armor, scrolls, weapons, etc. You'll be able to earn more as you go, of course, which is good because it's going to take a lot more than that to prove yourself worthy!
The final new addition, Orcs on the March, is an expansion of the original game. It basically starts out like Armored Princess, but there are so many new things for you to do that you'll spend many hours exploring all the new things. There are new units, items, skills, quests skills, and a new Orc skill as well for you to overcome.