An enjoyable puzzle game that you can complete in under 5h with no missable achievements. One achievement is luck-based and can take a while because you can only go for it once a day.
Approximate amount of time to 100%: 5 hours
Estimated achievement difficulty: 2/10
Minimum number of playthroughs needed: 1
Is there a good guide available: Yes, a friend and I wrote one to make it easier to complete this game, you find it here
Multiplayer achievements: No
Missable achievements: No
Grinding Achievements: No
DLC-Only achievements: No
Time-gated achievements: Yes, You can only try to go for the 100 flies daily gift once each day.
RNG-achievements: Yes, how many flies you get as a daily gift is random, I got it on my second day, but my friend took more than 30 days.
Does difficulty affect achievements: No
Unobtainable/glitched achievements: No
The achievement for 100 flies as a daily gift is a bit stupid because it is luck-based and you can only try it once each day. Otherwise, this is a very fun puzzle game!
This review is written on 19 April 2018 based on the Steam version which has 5 achievement when I write this review. The information can be outdated when developers add or remove achievements.