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2. Getting started
Updated a day ago2. Getting started
Installing
Install Fysik with a mod manager (r2modman, Thunderstore Mod Manager); it brings
BepInExPack_Valheim and
Jötunn with it. To install it by hand,
install those two first, then copy plugins/Fysik.dll into BepInEx/plugins/Fysik/.
On a dedicated server, Fysik must be on the server and on every player, with exactly the same version. Players without it, or with another version, cannot join.
Before you play
- Back up your world. As soon as it loads, every building made by players is checked, and what does not respect the physics cracks and falls.
- Look at an old base first. Set
Structure.ModetoSandbox: Fysik shows the forces, but nothing falls for lack of support. Shore up whatever is red, then set it back toPhysics. - World buildings are left alone. Stone towers, abandoned houses, villages and ruins keep vanilla support and show in grey; Fysik never brings them down.
The three modes
Structure.Mode is set by the server:
| Mode | What it does |
|---|---|
| Physics (default) | Fysik decides what falls: overloaded pieces crack, then fall. Vanilla support is off. |
| Sandbox | Fysik shows the forces, and nothing falls for lack of support. For test worlds and for checking old bases. |
| DisplayOnly | Vanilla decides what falls, as without the mod; Fysik only shows the forces. |
Your first builds
- Watch the ghost before placing a piece: it is colored by the stress it would have. Blue and green are fine, yellow is getting close, red would break.
- Press F7 after big changes: the X-ray colors every piece within 40 m.
- Posts every 2 to 4 m under beams and floors keep most houses well below their limit.
- Check the foundations. Aim the hammer at a post or wall at the bottom of a build: Rests on the ground means it carries its load into the world. A piece without that line only holds through the pieces around it.
- A beam reaching out bends, and the longer it reaches, the worse. A diagonal brace under it turns the bending into a squeeze.
- Stone is strong squeezed and weak pulled: use it for walls, pillars and arches, not for beams or overhangs.
- When something cracks you have a few seconds, fewer the more it is overloaded: add a post or a brace under it, or take the load off.
The Building guide page has worked examples, and Reading the forces explains every number the hammer shows.
