Are you looking for all the Health Filaments in South of Midnight? These green glowing crystals are scattered in various levels and some are quite hard to find. Still, if you can manage to collect enough of them, you'd be able to increase Hazel's HP.
Where to find all Health Filaments in South of Midnight - Health upgrades guide
There are a total of nine Health Filaments in the game. Every three that you obtain increases Hazel's health bar by a segment. Obtaining all of these also nets you the "Fit as a Fiddle" achievement.
Note: Health Filaments can be found in chapters 3 to 7 and chapters 9 to 12. We have a full South of Midnight chapters list, if you're curious. If you miss any of them the first time that you're going through a level, then you can go back to the main menu and select Load Game -> Replay Chapters. However, you'd have to restart the entire chapter from the very beginning.
Chapter 3 Health Filament location
The first South of Midnight Health Filament that you obtain shouldn't pose any problems at all. In fact, as you're making your way through Chapter 3, you will necessarily stumble upon this upgrade in the story.
Chapter 4 Health Filament location
To get this crystal, you need to make your way to the church. Then, at the church's yard, walk to the right-hand side by the cliffs. You should see grapple points that take you to an island in the middle of the lake.
Look beyond these and you'll notice even more grapple points. Use these to reach the hidden cave with the crystal.
Chapter 5 Health Filament location
For this South of Midnight Health Filament, you must proceed further into the level until you get the second memory flashback about Two-Toed Tom. Past this point, you should see grapple points that lead to a flower field with a water tank. Grapple onto these objects and use Hazel's weave to solidify the cart and shed. These will allow you to jump to the top of the ...
