Puppy Cross is a nice Picross game with cute dogs (and cats with the free DLC, which is needed to go for all the achievements). Getting 100% will take 15h+, it has one grindy achievement which can be done in an hour
Approximate amount of time to 100%: 15h+
Estimated achievement difficulty: 4/10
Minimum number of playthroughs needed: 1
Is there a good guide available: You don’t need a guide
Multiplayer achievements: No
Missable achievements: No
Grinding Achievements: The 101 dalmatian grids feels a bit grindy, but when you only do 5×5 puzzles it can be easily done in around an hour, the animation after completing a puzzle takes up the most time on a 5×5 puzzle
DLC-Only achievements: Yes, for the free DLC “Kitty Cross”
Time-gated achievements: No
Does difficulty affect achievements: No difficulty option
Unobtainable/glitched achievements: No
Puppy Cross is a nice picross game with dogs (and cats with the free DLC). The difficulty will change from level to level, so it isn’t the case that the last puzzles are hardest, although with the cat DLC the last one was a challenge, which is quite funny since it was the breed of one of my own cats.
My only complaint is that if you have turned on the mechanic that the game auto-select which parts you have done, it will already select a part while it is not yet surrounded by crosses or the edge of a puzzle. This is annoying with bigger puzzles because sometimes you think you’re working toward something else while in this case, you had to place an X and then go further. I sometimes also have used this with longer rows, to not have to count when I have enough blocks colored, but just by looking at the number while place blocks. You have the option to turn this auto-complete the numbers off in the settings.
For the achievements, I would suggest first playing through the game and after that checking out which items need to be in the garden together. Do the one for all dogs in the garden as the last one because otherwise, it takes more time to clean up the garden than when you only have to place 2 to 5 items at once in the garden.
This review for Puppy Cross was written on 7 January 2021, based on the current Steam version of the game which has 40 achievements at the time of writing this review. This information can be outdated, for example, when the developer adds or removes achievements or releases (new) DLC.