I've been getting more and more into puzzle games that have unique mechanics like The Swapper, Antichamber, and Trine 2, and I must say that I am really impressed with the execution of this game.
If you like puzzle and/or adventure games, you will really enjoy this one.
The music and aesthetics are fantastic, and the theme is industrial-era silent pictures-style (the cutscenes are delivered like a silent movie, with text given in between the scenes to illustrate what people are saying). Many of the environmental pieces come from real life objects, for example you will see playing cards used as fences, and popsicle sticks and pins littering the area.
The story is decent, you are the youngest child in a family tasked with rescuing the rest of your siblings after certain events provided in the beginning. The controls are very easy to become familiar with and the tutorial is both helpful and non-intrusive. Learning curve is minimal due to the helpful tutorials and simple control scheme.
As the youngest and smallest child in the family, you are able to "stack" with dolls exactly one size larger than yourself. Essentially, you are body snatching the person lol. For each person you take over, you will have a particular skill you can use. For example, one of the most helpful dolls is a lady doll that can use "eagle eye," which will reveal any unique dolls in the immediate area.
There are special sets of dolls that you can get achievements for if you successfully stack all of them together. For example, in the first level there is a family that has become separated - stacking the son, daughter, then the mother will complete the optional side quest.
The puzzles are not too challenging, and there are 3 available hints that you can use if you are stuck. The hints have a cooldown timer that is not very long. The first puzzle you encounter involves you having to find a way into an exclusive restaurant in order to clear out the guests (so the 3 people you need to body snatch leave as well).
For each puzzle, there will be different ways to complete them, and these things will all be represented in your secret hideout.
In the hideout, you will get a new wall mural for each level you complete. For each unique doll you collect in the stage, there will be a life-size model in front of the mural (similar to Fallout's bobble head collectibles). For achievement/100% junkies, you will love this part. There is also a mini painting representing the puzzle challenge you had to complete, and completing the puzzle every way (3 ways in the very first challenge) will complete the picture.
Great game if you want a new take on puzzle adventures, definitely recommend.