Here is the full list of all 37 Sakura Dungeon achievements.
Discover the fox girl's ship.
Recruit the Spirit Guardian into your party.
Defeat the dungeon lord.
Win your second battle against the succubus.
Recruit the Reaper Twins into your party.
Reassemble the state of Fortuna.
Recruit the Queen Bee into your party.
Defeat Yomi.
Step into the Abyss.
Defeat the reaper twins.
Recruit Anubis into your party.
Make the observatory operational again.
Recruit the Sand Sentinel into your party.
Give Anubis an offering of milk.
Recruit the chocolate mimic into your party.
Defeat 1,000 enemies.
Collect 10 outfits for your wardrobe.
Avoid an assassination attempt.
Recruit Maeve into your party.
Find all of the swimming wear outfits.
Use Yomi in your party.
Drive away the warrior from the shop.
Recruit Sylvi into your party.
Defeat the first floor guardian.
Clear the first floor of the dungeon.
Acquire the Dual-Soul ability for Yomi.
Acquire the Astral Blade skill for Ceri.
Acquire the warp gem.
Recruit Captain Bonny into your party.
Recruit the Ryuuou into your party.
Find every outfit in the game.
Defeat 2,500 enemies.
Defeat 5,000 enemies.
Win the game on hard mode.
Win the game on abyssal mode.
Defeat Hiriko.
Defeat Izanami.