Osteoblasts 100% Walkthrough Guide

Some tips:

• Save often. Even though you can revive if you die, it costs a lot of money. Try not to die.
• Save in multiple slots. Some dungeons won’t let you get out once you are inside.
• Try to get one blast spell book of each type. Check the resistance and weakness chart below.
• Try to get another blessing instead of Rest for healing. I got Monsoon although Petrichor works better.
• The game is grindy, so make sure to level up properly. Assign your stat however you like. I usually prefer to increase my Soul stat, although it’s up to you whichever you want to focus.
• Retrieve blessings from every statue that you can.
• Purchasing Rummage from Whale statue help to recover your Bones (HP) out of battles. You just need to walk a few steps to recover.
• Use all Memory of the Towers that you got. It will increase your passives slot.

I played the game with the Stranger class. All boss fights will be referenced with that character. You might want to slightly adjust the strategy depends on your class.

Also, the game might have random drops on its chests and other drops, so some items might have been incorrect. I have not specified the drops later on, but some of the early drops are still written in case they are needed.

Spells that becomes my favorite in the game: Thunder and Dim Wave. I also used Spook sometimes.

Weakness and resistance chart:

To check which type the enemy is, look at their outline color. This doesn’t work on some enemies though.

You can drink the red liquid to restore your HP.
– Head to the south exit.

– Interact with the graveyard to get 1x Bone Moss.
– Set checkpoint and worship the elk statue to learn some skills.
– Open the chest to the southwest to get Vitamin Gum.
– Return to the north exit.

– Open the chest to the east.
– Talk to the brown cat.
– Enter the tunnel.

Don’t forget to interact with all pots and coins that you see. I won’t specify them in the guide since they are very common. If you have trouble with the fights, try using Spook and Rest. Save often.

– Pick up the pickaxe on the dead ends and use it to the boulder blocking your paths.
– Open the chest near to the area exit.
– Head downstairs.

– Open the blue chest.
– Defeat the scripted enemy in the middle of the area.
– Step on the magic circle below it.
– Open the other chest on the northwest corner to get Vitamin Gum.
– Exit the area through the stair.

– Interact with the pot to get Grilled Bone.
– Pick up the pickaxe to the northeast.
– Interact with the purple gate to unlock it.
– Return downstairs. Feel free to restore your HP from the red liquid near your starting point if you want.

– Use the pickaxe to the boulder to the east.
– DO NOT interact with the bones west of the exit yet. The enemy is too strong for you to beat.
– Pick up the pickaxe and head downstairs.

– Worship the statue.
– Use the pickaxe and talk to the skeleton.
– Head downstairs.

– Head north, then east. Open the chest to get Falx.
– Head to the end of the dungeon to reach a chest containing Tomato.
– Save and interact with the boss.

Boss: Lady Caligula
My Level: 4 (Strength 9, Skill 12, Soul 10, Spite 6, Speed 7, Survival 10)

Keep on spamming Spook. Do not use Knock to avoid the counterattack. Heal whenever necessary. The boss will spawn a minion after her health goes ~20%, but just keep on focusing on the boss. Use Parry if you need more Marrow (MP), but don’t use Knock afterward.

– Head upstairs.

– Unlock the gate.
– Remember the skeleton that I told you not interact yet? Return there.

– Interact with the skeleton and choose to assimilate with it.

Boss: Ghost
My Level: 5 (Strength 9, Skill 12, Soul 11, Spite 7, Speed 7, Survival 10)

Keep on spamming Spook. Do not use it whenever the boss cast Ward (Reflect). Heal whenever necessary.

– Return to Papoulas Graveyard.

– Talk to Witch Cat near the place where you spawned for the first time.
– Although the cat ask you to talk to Violetta, don’t. She’ll gone after you do it and you won’t be able to buy Shack Key from her. Feel free to talk to her after you buy the key though.
– Head to the south exit.

– Use the key to the graveyard to the south.
– Interact with the grave in the middle of the cemetery.
– Open the chest east of the grave.
– Head south, then east. You can recover 30 Bones (HP) by talking to the woman.
– Assimilate with the bones north of the building to increase your Bones.
– Talk to the man blocking the exit.
– Interact with the locked door.

– Enter the previously locked house in the westernmost area of the map.

– Talk to the doctor.
– Eleonora, the woman near the doctor, can recover you to full health.
– Exit the hospital.

– Enter the graveyard again, but go to the south exit this time.
– Follow the northwest path to reach a chest.
– Head to the south exit.

– Explore the area. Feel free to head back and recover if you run out of health.
– There is a barely-readably map in the middle of the area.
– Interact with the den of skulls to the northwest to gain some Bones.
– Worship the shrine.
– Exit the area.

– Head to the north exit.

– Open the chest.
– Open the locked door to the cemetery.
– Follow the path to the northeast.

– Pick up the pickaxe.
– Worship the statue.
– Return to the south exit.

– Worship the whale statue. Feel free to use your money to buy the passive bonuses.
– Unlock the south exit and head in.

– Worship the shrine and set up your checkpoint.
– Break the boulder. Do not enter the house yet. The boss is too strong for you to beat.
– Head to the west exit.

– Head south and then west until you see a boulder.
– Use your pickaxe to break the boulder.
– Enter the cave.

– Worship the statue. You also can hibernate to recover your HP.
– Talk to the man to bring him back to the village. You can talk to the pumpkin in front of the whale statue in Fishing Village afterward to receive some reward.
– Reenter this screen to find a chest.

– Enter the house nearby.

– Talk to the man on the west to receive a quest.
– Talk to the seller.
– Exit the area.

– Head to the far east to see a statue. Worship it.
– Return to the area near the house.
– Head to the southwest area.

– Pick up the pickaxe to the southeast.
– Follow the southwest path to reach a boulder. Use the pickaxe.
– Open the chest and inspect the den of bones.
– Step on the pool of blood.

– Follow the path to the northwest.
– Open the chest.
– Assimilate with the bones to the north.
– There’s another bone that you can assimilate to the east.
– Poke the sleeping cat to the east.
– Proceed to the southwest exit.

– Follow the path until you reach a chest. Open it.
– Follow the north path to reach a chest and a statue. Worship the statue. It also sold better passives than the one in Fishing Village.
– Return to the previous intersection and follow the south path until you find a statue. Worship it.
– Continue following the path until you meet a samurai. Help him so he can go back to the village. If you talk to him in the inn, he’ll give you a Fishing Rod for you to fish with.
– Break the wall to the west of this samurai with your lighter.

– Head all the way to the east until you see an elephant enemy. Head north to see a house.
– Interact with the shutters to deliver your pizza.

– Head to the east exit. Watch out for the elephant enemy. It’s very strong.

– Worship the statue.
– Explore the whole area for chests.
– Unlock the locked gate to the north.
– Worship the owl statue.
– Head to the north exit.

– Unlock the locked door.
– Remember the Wizard’s House? Let’s try beating it. Enter the house to the northeast.

– Save and interact with the ghost.

Boss: Leaf Wizard
My level: 18 (Strength 12, Skill 27, Soul 29, Spite 19, Speed 11, Survival 17)
Keep on spamming Knock to the boss. Heal whenever you need it. Parry is also helpful if you need more Marrow. Purchasing Rummage from the whale statue might also help with the healing.

– Exit the house from the north exit.

– Open both chests and unlock the wall.
– Return to The Bog through the south exit.

– Enter the tower in the middle of the map.

Note: Once you are climbing the tower, you can’t go back. Make sure you have a shield that has Guard skill in your inventory.

– Reenter the room after the cutscene.
– Head upstairs.

If it isn’t obvious already, save Large Isolfians for the last. They have low damage and high HP.
– Open the chest to get Memory of the Tower. Use it from your inventory to unlock one extra memory slot for passives.
– Touch the flame in the center of the room to reveal the path to the next room.
– Head upstairs.

– Open the chest and worship the statue on the way.
– Head upstairs.

– Save before going north.

Boss: Uniformity of Nature
My level: 19 (Strength 13, Skill 27, Soul 34, Spite 19, Speed 12, Survival 17)
You need to increase your physical defense for this. I equipped Parma to learn Guard, a great defensive move. The boss is wewak to Echo, so if you have any echo skill, just use it in between the Guard. Don’t use Bunker as an alternative skill. You’ll take too much damage on the turn you cast it. Heal whenever you need it and keep Guard up at all times.

– Open both chests and exit the tower.

– Head to the west exit.

– Head inside the well next to the house to the north.

– Unlock the gate.
– Assimilate with the bones on the southeast corner.
– Step on the pool of blood to the north.
– Head north to reach a statue. Worship it.
– Follow the path to the north exit.

– Interact with all boxes to get some items.
– Unlock the door.
– Talk to the man that gave you quest to get the reward.
– Return to Flooded Wetlands and head to the southwest exit.

Do not interact with the burning log. They will give you damage.
– Head all the way to the east until you see a locked door. Unlock it.
– Keep on going east, opening the chest on the way, until you see another exit to the north. It’s the exit to The Bog. Do not enter it.
– Follow the way to the south to find a statue and apile of bones to assimilate with.
– Head west until you reach a skeleton-like pole near the bridge, then head south and east until you see a skeleton. Talk to him to invite him to the village.

– Head west to reach an elk statue. Defeat the “fireballs” on the way.
– Head south to find a chest.
– Head north until you see a pumpkin. Talk to it and give it the Pocket Sun.

– Head north again and unlock the locked wall nearby.
– Continue to the north until you see a chest. Open it and inspect the glowing area nearby for a fight.
– Interact with the red “fireball” to the west to fight it and obtain Pocket Sun.
– Head to the west exit.

– There is a barrel to the north. If you are strong enough, you can get some items from it. I’m not sure what “strong” enough means, but you’ll be able to break it later. It doesn’t have anything too important so don’t worry about missing out.
– Follow the east path to find a statue. Worship it.
– Follow the south path until you cross a bridge.

– Pick up the pickaxe to the west.
– Worship the statue to the southwest corner.
– Follow the southeast path to find Edmund, another skeleton. Recruit him.
– Unlock the locked gate.

– Head north, cross the bridge until you see a giant boulder. Use your pickaxe.
– Continue heading northwest until you see a chest and a house.
– Pick up the pickaxe to the east.
– Enter the house.

– Worship the statue to the northeast.
– Head to the north exit.

– Save before interacting with the boss.

Boss: Count Malzarien
My level: 25 (Strength 15, Skill 31, Soul 55, Spite 24, Speed 19, Survival 18)

Just keep on attacking and watch out for the boss’ DoTs. To be honest, I only spammed Thunder and Petrichor (and some Parry whenever I needed more Marrow) in this fight.

– Talk to the black guy.
– Open the chest on the back to get another emblem.
– Head to the south exit.

– Open the locked doors to the west. Talk to the skeleton on the south door to recruit him.
– Exit the building from the south exit for now.

– Head to the west exit.

– Step on the pool of blood.
– Worship the whale statue to the north.
– Open the chest on the northwest and pick up the pickaxe to the northeast.
– Unlock the locked door. Enter it.

– Use the pickaxe to the northwest.
– Exit the area through this exit.

– Touch the burning skull to the south.
– Explore the area. Your goal is to reach the woman with red clothing. Defeating her will unlock the stair to the exit.

– Talk to the bartender and enter the room you came in from.

– Talk to Ganfel twice.

– Return to Sapphire Clearing, the dark forest you came from earlier.

– Head ot the northwest exit.

– Head to the west exit.

– Explore the area for chests and pile of bones.
– The south exit leads to the locked exit that you unlocked in The Bastion, so return to Jufra Waterfalls for now.

– Head north to see a statue. Activate it.
– Interact with the shrine to the west.

– Worship the statue on the northeast corner of the map.
– Head to the east exit.

– Unlock 2 locked gates that you see.
– Head north to see a statue. Worship it.
– Return to the inn that you passed and head north from there to reach the other statue.
– Explore the area for chests and head to the north exit.

– Head to the east exit.

– Unlock the locked door.
– Head to the southwest exit.

– Open the chest.
– Return to the upper path of the village.
– Enter the house with the red light.

– Talk to the guy next to the cat.
– Enter the hole to the east to reach a shiny item.
– Exit the building.

– Head to the north exit.

– Pick up the pickaxe next to the guy.
– Talk to the guy.
– Pick up the pickaxe on the northeast corner of the map.
– Another pickaxe is somewhere on the fields to the west, the second field south of the north exit.

– Defeat all enemies in this area and then talk to the man near the south exit.
– Drink the red liquid on the southeast corner of the map.
– Head to the north exit.

– Follow the path until you see a boulder. Break it.
– Unlock the locked gate and open the chest.
– Return to Ragmarian Ruins, south of Grigori Village.

– Use your pickaxe to break all boulders except for the one near Grigori Village entrance.
– Head to the west exit.

– Unlock the locked door.
– Return to Jufra Oldwoods (head west from Ragmarian Ruins).

– Head to the west area. You’ll see a red light. Enter it.

– There are three exits here: north, west, and middle (stairs). The middle one is a shop and there is nothing on the north exit yet.
– Worship the statue near the north exit and another statue near the west exit.
– Head to the west exit.

– Follow the path until you reach a statue. Worship it.
– There is a pickaxe near the skull to the west. Pick it up.
– Do the ritual by interacting with the skull.
– Unlock the locked door to the east.

– Traverse the path that you went through again. Notice the boulder to the south. Break it.
– Follow the southeast path to reach a statue. Worship it.
– Talk to the skeleton nearby.
– Return to the previous intersection and head to the southwest exit.

– Explore the area and head to the northwest exit, through the locked door.

– Open the chest to get Memory of the Tower. Use it.
– DO NOT use the stair in this building. You’ll be teleported to a place where you couldn’t move.
– Exit the building and return to Jufra Interiors by tracing your way back.

– Head to the north exit.

– Open the chest on the way to the north.
– Save before talking to the boss.

Boss: The Baroness
My level: 35 (Strength 17, Skill 35, Soul 90, Spite 36, Speed 20, Survival 22)

Be careful when using magic attacks. The boss might cast reflective Ward. It will change form later on, focusing more on attacking rather than defending. You’re free to attack at this point. The easiest way to defeat the boss is to spam Din Wave over and over.

– Interact with the grave where the boss was standing to get Emblem of the Crows.
– If you head to the inn in Jufra (just go downstairs in the south exit), you can kill all of the resident.
– Return to Ragmarian Ruins.

– Talk to Ganfel.
– Head south to unlock the previously locked door.
– Step on the pool of blood.

– Traverse to the southeast corner of the map to see another locked door.
– Unlock the door.

– Follow the northwest path to reach a chest containing Memory of the Tower. Use it.
– Unlock the locked door.
– Head upstairs.

Watch your steps. Heading to the pit will send you back to the first floor or the exit.
– Follow the east path to reach a chest containing Memory of the Tower. Use it.
– Go to the other path to reach a stair. Head upstairs.

– Worship the statue.

Boss: Witch of Chains
My level: 38 (Strength 18, Skill 37, Soul 97, Spite 38, Speed 20, Survival 23)

She doesn’t have much HP so just hit her with your strongest skill before she can deal damage to you.

– Open both chests.
– Unlock the chain in the same area.
– Exit the building.

– Unlock all chains in this area. You should get another chest and a pickaxe.
– Head north.

– Unlock the chain to the west to reach a chest.
– Go to Totem Hills. You can reach it by heading to the west exit from Jufra Interiors, then go to the southwest exit.

– There are 2 big boulders here, but you only have one pickaxe. Use the key to the boulder to the southwest corner.

– You’ll be able to reach another pickaxe and a pool of blood nearby.
– Open the chest near the south exit.
– Use your pickaxe to the other boulder in this map.
– The south exit will lead to Jufra Waterfalls and you won’t be able to return here from there. Whichever exit you take, head to Mad Meadow, accessible south from Ragmarian Ruins.

– Break the boulder east of the north exit. Open all chests. One of them contains Memory of the Tower. Use it.
– Head to the southeast area of the map to get a pickaxe and 2 pile of bones to assimilate your bones with.
– Return to Papoulas Graveyard.

– Head to the north exit.

– Unlock all gates.
– Worship the statue.
– Assimilate with the bones to the southeast.
– Talk to both Violetta (the cat) and Witch Cat.
– Head to the north exit.

Note: I don’t know the name of this area. I just made it up.
– Explore the area for chests, pool of bloods, and pickaxes.
– Break the boulder on the northwest corner.
– Head east until you see a hole next to the shrine of the human. Use it to access 2 chests.

– Worship the statue to the southeast of this hole.
– Head upstairs.

– Explore the area to unlock all chains and open all chests.
– Assimilate with the bones to the north.
– Unlock the door to the west exit. It leads to Fishing Village.

– Interact with the skull near the stairs north of this door to get Skill Skull.
– Talk to Boris on the north exit.
– Worship the nearby statue.
– Head south fo this statue (you need to go downstairs first) to see another statue. Worship it.

– There are three exits here. One north from the south exit (near the place where you assimilate the bones), one near the stairs leading to the north exit, and the last one is the north exit. The first two exits lead to the same area, so let’s cover it first.

– Break the boulder.
– Open the chest on the way to the southeast exit.
– Head to the northeast exit. The southeast exit will return you back to the place where you came from.

– Break the boulder to the east to reach another pickaxe.
– Follow the other path to unlock the nearby door.
– Head to the south exit first.

– Talk to the man and open both chests.
– Return to the previous room.

– Head to the west exit.

– Unlock the chain blocking the way.
– This is the last area of the first dungeon, so there’s nothing more you can do in this map. Return to the previous area and head to the north exit instead.

– Break all boulders you see.
– Talk to Pickles that is hiding behind a boulder.
– Worship 4 statues that you see on this area (elk, spider, whale, bat). The bat statue is near the chests on the southeast corner.

– Pick up the pickaxe on the southeast corner of the map.
– There’s another pickaxe on the way to the spider statue.
– Touch the burning statue east of the spider statue.
– Talk again to Pickles to get some candies.
– Head east of the south exit to receive another pickaxe with a chest.
– Proceed to the south exit.

– Note that the south exit leads to the Floating Mountain’s north exit.
– This area is very huge. Just explore the whole area (you can go to the area with purple floors from the stairs) and collect everything.
– Use the lighter to access the northwest area.
– Worship the elk statue near the north exit.
– Enter the house in the middle of the map.

– Explore the whole area for pool of blood and 2 chests.
– Head to the north exit in the northwest corner.

– Talk to Ganfel.

– Open the chest to get Emblem of Crosses.
– Head to the north exit.

This is an endless map, meaning that you will move to the same place if you move in one direction.
– Head downstairs and go to the southeast to pick up a pickaxe.
– Return to the hole where you came from and head east. Head south at the next intersection (after the stairs) and use the hole.

– Head southwest to find a bone (near where Nana was standing). Assimilate the bones.
– Head upstairs from the stairs west where Nana was standing to find Ganfel. Talk to him.

– Head north and talk to the guard.
– Head to the northeast area to find a pile of bones. Assimilate with it.

– Talk to all skeletons to get some items.
– Open the chest on the northwest area.
– Talk to Ganfel and say “no”.
– Ascend the tower.

Note: you can come back to the other area by interacting with the blue-ish orb near the entrance of this area, but there isn’t much you can do apart from unlocking gates. Read section “7. Cleanup” for more details.

– Worship the owl statue.
– Open the chest to the northeast to get Memory of the Tower. Use it.
– Worship all 4 statues to the northwest path.
– Head upstairs.

– Worship the elk statue.
– Head upstairs.

– Follow the path until you reach a place with stone statue.
– Interact with the stone statue to reach a secret area with a chest containing Memory of the Tower.
– Fall through the cracks.
– Follow the path again and head to the exit. Step on the pool of blood before exiting the area.

– Save before talking to the boss.

Boss: The First Liar
My level: 51 (Strength 22, Skill 50, Soul 124, Spite 54, Speed 30, Survival 32)

The boss isn’t much. You need to finish it with physical attack though.

– Interact with the idol.

If you answer with “End it all”, you’ll get another fight.

Boss: Graulf
My level: 52 (Strength 22, Skill 51, Soul 125, Spite 54, Speed 30, Survival 32)

Keep Guard up at all times. I usually alternate between attacking and healing on the next 2 turns. Don’t use physical attack since the boss might counter you.

Congrats for beating the game!

If you somehow wants to finish everything, here are some other places you can travel to. Note that you must travel back with the orb in the picture below. If you want to return to this place, you must walk manually through Highbeat. You also can set checkpoint in Citadel Tower and travel through the Owl if you want, but make sure you don’t set checkpoint to other places.

This place is located north of Papoulas Graveyard.
– Unlock the gate and break the pot.

This place is located in the house in Cemetery Graveyard.
– Unlock both gates inside. DO NOT enter the stairs on the right room. It’s bugged.

– Break the boulder near Grigori Village’s entrance.

This place is located inside the inn in Ragmarian Ruins.
– Interact with the fire. Interact with the grave to get an item.

This place is located north of the farm in Grigori Village.
– Unlock the spikes.

I’ll leave some parts that I couldn’t obtain here.

How to unlock this door.

This place is located 1 screen below Floating Mountain.
How to reach the chest.

How to reach both chests.

There are also other stuffs like doors that couldn’t be opened (the one in Papulous Graveyard and Fishing Village), but I’m not sure whether it’s intended or not.

Also, is it possible to go to the upper side in City of Glass?

I’ll leave it here for now in case there are other people who wants to explore about this further.