In Stardew Valley, you can now create and customize your own challenges, instead of waiting for them to be randomly generated. It allows you to decide which rewards to give out, and which ones to skip. It's also possible to create your own challenge system and reward system.

If you've played the game before, you'll know that the challenge system was one of the most important aspects of the game. Without it, you wouldn't have been able to complete all of the achievements. Now, you can make your own challenge system, and customize it to fit your needs.

To create your own challenges, you need to set "CustomChallengesEnabled" to 'true' (without the single quotes). You will then be able to choose which rewards to give out, and which ones to skip.

You can now also customize the reward system. You can set it up so that it gives you rewards for completing the challenges, or for finishing the game.