Crashy!
by pycodder
Crashy! lets players glue blocks into one structure, switch it to live physics, and then throw, launch or blow it apart.
What it does
Holding Construction Glue in the off-hand builds with the glue applied automatically, so each placed block bonds to the ones it touches. Glued blocks are outlined while the glue is held, and a sneak plus right-click on any of them takes the whole group apart again. Bonds persist after a world is closed and reopened. The mod depends on Sable, a sub-level physics library that gives Minecraft rigid-body physics.
Physics Activator makes a glued build behave as a single live object that falls, tumbles and collides with the world; right-clicking it with an empty hand or with the item again returns it to a fixed state, and the build snaps to the grid and settles. Launcher charges with power from 1 to 10, roughly 8 m/s per level, with a full charge throwing about 80 m/s. Build Saver and blueprints record a glued build and stamp it out anywhere without overwriting existing blocks. The mod is open source under the MIT License and runs on client and server, with files for 1.21.1 only.
Key features
Glue bonds blocks
Construction Glue joins placed blocks into one rigid structure, and a single block can be glued with a right-click.
Physics Activator
Switches a glued build between static and live physics, and can be fed redstone to trigger it.
Launcher
Charges and fires glued objects, with power set between 1 and 10 by how long it is held.
Blueprints and Build Saver
Build Saver records a glued structure on a drafting table, and blueprints stamp copies that never replace existing blocks.
Configurable destruction
Sliders adjust toughness, crater width, debris spread and launch speed, and TNT blasts can be toggled per world.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Physics sandboxes
Players build structures, make them live and watch them fall, tumble and crash into terrain.
Demolition
TNT and launched objects break glued builds apart, leaving rubble and debris that settle in the world.
Who it’s for: Players who want to build with physics and create collapses in survival or creative worlds. Server owners can enable the mod on a multiplayer server, which requires both the server and every player to have it installed alongside Sable.
Questions
Does Crashy! need Sable?
Does Crashy! have to be installed on the server?
Which game versions does Crashy! support?
Can glued builds be copied?
In the catalog
Crashy! is one of 8,499 Technology mods on ModsFinder, and one of 3,557 Technology mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
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What the author says
Glue your build together. Switch on physics. Throw it at something. Crashy! is a survival-friendly toolkit for Sable, the sub-level physics library. Sable gives Minecraft real rigid-body physics but deliberately adds no way to use it in-game — Crashy! is that way. Five items and blocks, one gameplay loop, and a lot…
Official listing
- Modrinth page
- modrinth.com/mod/crashy
- Owner
- pycodder
- Published
- 2026-07-27
- Updated on Modrinth
- 2026-08-19
- Facts verified
- 2026-10-15