Shadows: Price For Our Sins, contains neither Steam nor in-game achievements at the time of writing.

In my video playthrough below I have noted with time markers all puzzles and hidden object scenes.

During my playthrough of Shadows: Price For Our Sins I personally did not encounter any bugs.

However, Steam user Pigeon, formerly noble reported that during hidden object scenes, clicks did not always register and that the hint button often gave incorrect hints. As such this is something to be aware of during your game.

Video contains...
@ 1:53 = HOG #1 (Under the tarp, to the left of your car).
@ 6:22 = Puzzle #1 (Assembling the Jack o' lantern puzzle).
@ 12:09 = Puzzle #2 (Gate lock, to the right of the house, arranging skulls in blue squares and Pumpkins in orange squares).
@ 12:46 = HOG #2 (Storage area past the gate to the right of the house, where you first meet the missing dog).

Video contains...
@ 0:47 = Puzzle #3 (Find matching pairs of sweets in sack).
@ 3:29 = Puzzle #4 (Rotating squares to assemble photo, door lock puzzle).
@ 5:53 = HOG #3 (Inside the shed, behind the gate to the right of the house).
@ 8:36 = HOG #4 (Pinata to the right of the house).
@ 11:27 = Puzzle #5 (Shackle lock & key puzzle, under the bridge).
@ 12:24 = HOG #5 (Inside the cart, on top of the bridge).

Video contains...
@ 0:16 = Puzzle #6 (Chessboard trap door lock puzzle, inside the shed).
@ 3:53 = HOG #6 (Dusty table in shed cellar).
@ 5:35 = Puzzle #7 (Sorting the order of wine bottles on the shelves).
@ 8:07 = Puzzle #8 (House, left side door puzzle lock).

Video contains...
@ 0:34 = Puzzle #9 (Statue button sequence puzzle, inside the house).
@ 2:32 = HOG #7 (In the house, upstairs, in the room with the stained glass window).
@ 5:26 = HOG #8 (Apple tree at the bottom of the stairs, inside the house).
@ 7:52 = HOG #9 (The balcony, on the other side of the broken stained glass window).
@ 11:52 = Puzzle #10 (Arranging coloured balls on the board puzzle, inside the house, on the second floor, in the statue's hands).

Video contains...
@ 0:10 = Puzzle #11 (Matching the farm inhabitants silhouettes with their portraits puzzle in the sewing room).
@ 2:40 = Puzzle #12 (Light beam puzzle, back gate lock in the garden, to left of house).
@ 6:04 = HOG #10 (Inside the church, behind the coffin).
@ 10:10 = HOG #11 (Inside the barn, under the trapdoor).

Video contains...
@ 0:04 = Puzzle #13 (Matching pairs gate lock puzzle outside the church).
@ 1:06 = HOG #12 (Church graveyard).
@ 3:32 = Puzzle #14 (Coffin lock puzzle inside the church).
@ 7:10 = Puzzle #15 (Matching pairs window puzzle in church bell tower).
@ 10:37 = HOG #13 (Church graveyard, again, 2nd time).
@ 13:00 = Puzzle #16 (Fountain flower bloom puzzle, outside the church).

Video contains...
@ 3:31 = HOG #14 (Swamp, just past the stables).
@ 5:46 = Puzzle #17 (Scales puzzle in stables).
@ 8:20 = HOG #15 (Swamp, just past the stables, again, 2nd time).
@ 11:47 = HOG #16 (At the statue, just passed the swamp, burst the balloon to activate).

Video contains...
@ 2:15 = Puzzle #18 (Butterfly puzzle in greenhouse).
@ 6:13 = HOG #17 (At the statue, just passed the swamp, again, 2nd time. Place the yellow star in the statues box to activate).
@ 8:52 = HOG #18 (Dolls house in cinema room).
@ 11:38 = Puzzle #19 (Painting the chameleon in the greenhouse).

Video contains...
@ 0:50 = Puzzle #20 (Jack in the box puzzle, in the cinema room).
@ 3:03 = Puzzle #21 (Lance door lock puzzle, in the stables).
@ 3:18 = HOG #19 (In the stables).
@ 6:08 = HOG #20 (In the freezer, the room at the back of the kitchen).
@ 8:07 = Puzzle #22 (Salt shaker puzzle in the kitchen).
@ 12:37 = Puzzle #23 (Chain link puzzle in the blacksmiths).

Video contains...
@ 0:01 = Puzzle #24 (Connecting fish and boats door lock puzzle, hut at the end of the pier).
@ 1:34 = HOG #21 (On the platform above the cannon inside the hut at the end of the pier).
@ 8:17 = Puzzle #25 (Painting puzzle in the mill by the river).
@ 10:28 = Puzzle #26 (Stamp puzzle in the mill by the river).

Video contains...
@ 0:16 = Puzzle #27 (Oven door lock tile puzzle in the kitchen).
@ 5:16 = Puzzle #28 (The final board game puzzle).

For anyone with problems viewing the embedded videos in this guide (such as those in China having to use a VPN to watch videos on YouTube) here's a link to the playlist...
https://www.youtube.com/playlist?list=PLgrKGjfHCc0ijGd_fECHAw6iIwYZ3eady

I hope you found this guide of help, all comments, suggestions and criticism (constructive) is gratefully received.

An A to Z list of my Steam achievement guides and walkthroughs can be found @ https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=1502405720
If you would like to get a notification in your activity feed when I post a new guide, just click the "follow anrkyuk" button on my profile guide list...
https://psteamcommunity.yuanyoumao.com/id/anrkyuk/myworkshopfiles/?section=guides