Hi Denis_Maria_Boghean,
Welcome to our community! 
Maybe you could watch the Number Wizard UI section first. Then you’ll very be likely to modify your adventure game so the player will be able to click on buttons.
If you want to try to learn this yourself (it’s very simple), you could watch a video on Youtube such as this one. If the video is not clear (I didn’t watch it), look for “Unity Button Tutorial” on Youtube.
Did this help?
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- Forum User Guides : How to mark a topic as solved