Falling Blocks
by mochensky
Falling Blocks turns the ground near a player into a collapse hazard, with solid blocks dropping at random intervals.
What it does
Every 30 to 120 seconds, a sphere around a player triggers a collapse in which most solid blocks nearby lose their support and fall, and entities affected by physics can drop with them. Smart physics leaves out certain blocks, including bedrock, portal blocks and fluids, so the hazard stays within solid ground. Five seconds before a collapse starts, a server-wide boss bar shows a countdown to every connected player.
The mod is built for survival worlds and multiplayer servers where the collapses add danger while players build or travel. It works alongside vanilla content and most other mods. Because only the server needs the mod, a host can run the hazard for everyone who joins without asking players to install anything. Falling Blocks requires Fabric API and is published only for Fabric, under the Creative Commons Attribution Non Commercial Share Alike 4.0 license. Builds cover 1.19 – 1.21.10 across 23 release versions, and the latest file is 1.0.0 for 1.21.10.
Key features
Random collapse events
Blocks around a player lose stability at random intervals and fall, with the sphere reaching 30 to 120 seconds apart.
Countdown warning
A global boss bar shows the time left before a collapse, appearing 5 seconds ahead of each event.
Smart physics
Most solid blocks fall, while exceptions such as bedrock, portal blocks and fluids stay in place.
Physics-affected entities
Entities that respond to physics can be carried down along with the falling blocks during a collapse.
Compatibility
Latest build for each game version and loader.
1.21.x11 of 11 versions with builds
1.20.x7 of 7 versions with builds
1.19.x5 of 5 versions with builds
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
Multiplayer chaos
A server owner can add unpredictable collapses to a shared world so every player has to stay alert while building.
Quick builds under pressure
Players who build quickly can finish a structure before the next collapse arrives, or lose the work to it.
Who it’s for: Server owners who want unpredictable hazards in a shared world, and players who enjoy survival with added danger.
How it compares
Falling Sand is server-side only and published for Fabric 1.20.1 – 1.21.11 under All rights reserved, so its license is not open. Anvil Falling is open source under the GNU General Public License v3.0 or later and works on Fabric, Forge, NeoForge and Quilt; it needs the server while clients may skip it. Kinetic can run on a client alone, a server alone or both, and is licensed under Creative Commons Attribution 4.0.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Falling Blocks | Fabric | 1.19 – 1.21.10 | Server-side only | 2025-12-04 |
| Falling Sand | Fabric | 1.20.1 – 1.21.11 | Server-side only | 2026-08-10 |
| Anvil Falling | Fabric, Forge, NeoForge and Quilt | 1.20 – 1.21.10 | Server required, client optional | 2025-12-22 |
| Kinetic | Fabric | 1.21.4 | Client or server, optional | 2025-02-15 |
Questions
Does Falling Blocks need Fabric API?
Do players need to install Falling Blocks?
Which versions does Falling Blocks support?
In the catalog
Falling Blocks is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 15,569 mods support Minecraft 1.21.10.
More from mochensky
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What the author says
Falling Blocks turns your world into a collapsing danger zone! At random intervals, blocks around every player lose stability and fall as physics-affected entities. Build quickly, stay alert - the ground might not be there for long. Yes, you can still beat the game! This mod adds tension and unpredictability to your…
Official listing
- Modrinth page
- modrinth.com/mod/fallingblocks
- Owner
- mochensky
- Published
- 2025-11-20
- Updated on Modrinth
- 2025-12-04
- Facts verified
- 2026-10-15