[millenia]

I don't think Gray Matter gets much "harder" in the later chapters but it definitely gets better. And I think there is more to do, so it probably gives at least a tad more challenge than the first chapters.

Even though the game was on the easier side it didn't feel as easy as many other recent games (Memento Mori for example). And personally I enjoyed the puzzles, they were realistic, logical, interesting and fun.