Well.. pretty ok game. Lil'bit annoying time to time but ok and quite fun to play. I think the earliers games a somewhat better.

I love these games a lot. They have inspired some great ideas for me too. BUT the first game i couldn't finish because of a bug so far through i couldn't be bothered to start again. I had a bug on the third preventing progression.

This game being the forth in the series seems absolutely no different. another progression preventing bug. The game seems to think my next task is to do something I've done. because it hasn't recognised my action I cant continue. Its not too far into it so I could start again. I may do one day.

BUT, here is a suggestion the devs really should've implemented already and should be in future titles if any:

Have a system to revert the last progression change. sort of like an Undo. But don't just do it based on what the game recognises. as its likely it may not revert the component that was move/unlock that the game didn't detect. but also check all components that had been interacted with since the last completed component and revert them back to there original set state.

So maybe a more streamlined method would be since you clearly save the state of all these interacted components create a shadow save for all the states from the last completed section and reverting would just load it back to that point.

I only play these when I'm in a proper vibe for it and just to have the mood instantly taken away when these bugs occur really sucks.

If you like puzzles this game is simply awesome. Had a great time with all 4 of the games!