Improve Physics and Add Rope with the Physics Craft Mod

The Physics Craft mod improves the physics of Minecraft by adding force, torque, pressure, drag, and improved buoyancy. This mod is similar to the Ships and Boats Mod, but it is much more realistic. It also adds a functional rope that can be used for things such as rope swings, bridges, and more.

Floating Blocks:

You will need to start your flying structure in the water. First find a body of water at sea level that is at least 3 block deep. Place a block on top of the water. Then attach your other blocks to that first block. Some materials cannot float.

Physics Craft Mod minecraft 1.2.5


i – Move forward
k – Move backwards
j – Turn Left
l – Turn Right

Advanced (Activate by pressing ‘C’):
Toggle Gravity: X

I – Move forward
K – Move backwards
J – Turn Left
L – Turn Right
U – Move up
O – Move down

F and H – Rotate about x-axis
G and V – Rotate about z-axis
R and Y – Rotate about y-axis

P – Stop all block movement


Rope is currently only available in creative mode.

Minecraft Rope mod 1.2.5

Right click on a block with the rope in your hand to place a rope.

Right click again to unravel more rope. You can left click to let go.

Left click on an existing rope to grab or let go of it.

You can attach a rope to another block by right clicking on a block with the rope in hand

You can cut a rope by left clicking it with a sword

Minecraft mods for 1.2.5 Rope Bridge physics

Download PhysicsCraft:


  1. Locate your Minecraft.jar file.
  2. Install ModLoader if your haven’t done so already.
  3. Drag the files from inside the PhysicsCraft folder found in the .zip file into Minecraft.jar.
  4. Finished!