MCGalaxy Server:

I want to add hidden interactable objects in my world that my players can find and receive some kind of reward, but only work once and possibly only for 1 player. Is there also a way I can distribute these objects randomly across the world?

There is no functionality like this included in the base MCGalaxy, but you can find or write a plugin that does it. Here are some public example plugins: https://github.com/ClassiCube/MCGalaxy-Plugins
Reward.cs is the closest to doing what you described, though it just gives money.

1 hour ago, Goodly said:

There is no functionality like this included in the base MCGalaxy, but you can find or write a plugin that does it. Here are some public example plugins: https://github.com/ClassiCube/MCGalaxy-Plugins
Reward.cs is the closest to doing what you described, though it just gives money.

It wouldn't even be possible to create a Bot that pays the player when clicked on then disappears? And how do I install that plugin?

4 minutes ago, Village_Crafter said:

It wouldn't even be possible to create a Bot that pays the player when clicked on then disappears? And how do I install that plugin?

It's possible if you know how to code. To install: Read the README.md lower down on the page