BoBoGram

Here's an excerpt from BoBoGram's description on the game's official website:

The Rule Discovery puzzle is a genre of puzzles that focuses on the process of the player finding out the rules of their own, whereas typical puzzles reveal all the rules from the start and focus on solving the puzzle.

It'll be intuitive if you have played some puzzle games such as The Witness or Understand.

BoBoGram: A wonderous puzzle book is a rule discovery puzzle book consisting of 30 puzzles.

A puzzle book is a type of a book you might have seen somewhere, which contains like 100 sudokus or something.

Of course I wouldn't make an ordinary puzzle book, right?

Recover the long lost rules, and color the cells correctly.

The estimated playtime will be ~6 hours.

There are no hints nor answers. You'll be certain of yourself if you correctly solved all of the puzzles.