You can see the complete walkthrough of the game including all achievements in the following video :


Note of the dev of the game :
Albertpa [developer] 20 Oct, 2023 @ 2:21pm
Hello! I want to let you know that if you're following this guide, we've made a slight change to the 53:30 minute puzzle!!! So it's not exactly as it appears in this guide!

Achievements :
0:00 CATACOMBS
0:00 Welcome to Waterfall Tower : A simple prison break
16:55 Hydrophobia : Left the basement behind
17:00 TOWER ENTRANCE
45:39 Light of the eclipse : Exited the entrance hall
47:00 HALL AND KITCHEN
1:09:15 The Mousetrap : Be done with dinner
1:10:05 BEDROOMS
2:11:31 The Key is mightier than the sword : Unlock the Scribe's spot
2:17:07 The 15th Guest : Visited the Developer's Room
2:19:54 Unforgettable Classics : Play an oddly familiar tune
3:01:17 Bring Me Something Nice : Kept an useless trinket
3:01:17 No Longer Rained In : Escape from Waterfall
3:02:50 The Scribe Successor : Gather all journal entries
3:03:51 Complete the Circle : Despite everything, return again to Waterfall Tower

You can access at this part of the game after completing the game and unlock the Epilogue

Achievement :
54:55 The Last Assignment : Create and use your own key



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