Viki Spotter: Zoo has unlike most other Viki Spotter games, just 25 Steam achievements, none of which are missable (as any level can be played at any time, as all are unlocked at the start), completion time is in the region of 45 minutes.

There are 24 levels to play with one achievement awarded for each level completed and the final achievement earned for completing all 24 levels.

There is no randomness in the levels and the solution for each level always remains the same, leaving no replayability. I've added video walkthroughs of my gameplay below, editing out thinking time, which you can refer to if you get stuck.

Note that at the time of writing, Steam is still "learning about this game" so achievements will not yet count towards profile totals, I'm somewhat unsure of the "learning" process, but given the positive reviews, it should only be a matter of time until they count towards profile totals.

Bugs are sadly rather common in the Viki Spotter series and Viki Spotter: Zoo is no exception, these are the bugs that I found during my playthrough...

Level 2 = There is a tree/bush to the left of the giraffe in the bottom picture that is not there in the top picture, this is a difference, the game however does not recognise it as a difference.

Level 3 = There are two differences very close together on the top left most vine, in the top picture there is a snake, but no leaf and on the bottom picture there is no snake, but there is a leaf. It is impossible to click on both of these differences on the same picture, as such you will need to click on one difference on the bottom picture and the other difference on the top picture.

Level 9 = In the top picture, in front of the sun is a hill/mountain, in the bottom picture, there is no hill/mountain there, this is a difference, the game however does not recognise it as a difference.

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=PLgrKGjfHCc0i0bJ-ZIIq3CZT6Tu7kqZaS

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://sp.zhabite.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://sp.zhabite.com/id/anrkyuk/myworkshopfiles/?section=guides