There are 10 Undead Bone Shards in Dark Souls 3. Finding all of them is needed to upgrade your Estus Flask and for the Ultimate Bonfire Trophy / Achievement (reinforce a bonfire to the highest level).
After finding a Bone Shard you can burn it in the bonfire of Firelink Shrine (the hub area where you level up). This will increase the bonfire’s intensity and improve your Estus Flask so that it heals more HP with each use. The trophy unlocks after burning all 10 shards.
You should get all of these upgrades as soon as possible! They help immensely in beating the game and make things easier for you. This guide shows the order in which you can obtain them. The ones from early areas are shown first, the ones from endgame areas last. None of them are missable! You can still get them after beating the final boss. They also respawn in New Game+. To see how many you have found check the number below your Estus Flask or take a look at the bonfire intensity in Firelink Shrine.
All Estus Shard Locations Guide
VIDEO GUIDE
TIMELINE:
#1 – Undead Settlement – 0:05
#2 – Cathedral of the Deep – 0:41
#3 – Road of Sacrifices – 1:46
#4 – Road of Sacrifices – 2:31
#5 – Catacombs of Carthus – 3:52
#6 – Catacombs of Carthus – 6:22
#7 – Irithyll of the Boreal Valley – 7:18
#8 – Irithyll Dungeon – 7:56
#9 – Lothric Castle – 8:19
#10 – Lothric Castle – 8:44
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