Aero Block Ban
by Snakejac
Aero Block Ban is a NeoForge management mod that stops configured blocks from being used in simulated contraptions, and it runs on the server alone.
What it does
Operators build a deny list of blocks that cannot take part in simulated contraptions. The restriction covers blocks placed on a contraption after it is assembled, including those placed by a deployer, and blocks that would be included when a contraption is assembled. Blocks can be listed one at a time or by block tag, and the deny list is saved between server restarts.
Normal block use is left alone. The restriction applies only to simulated contraptions, so players can still place and use the same blocks elsewhere in the world. The mod works alongside Sable and is used with Create. Commands for adding, removing and listing entries require operator permission, and a server reload is needed after changes.
The mod is published for NeoForge on 1.21.1 only. Its latest file is 1.0.1, released on 2026-07-19. It runs on the server side only, so players join without installing it. The mod is All rights reserved and is not open source, though its source code and issue tracker are public.
Key features
Simulated contraption restriction
Configured blocks are prevented from being placed on simulated contraptions, including after assembly.
Assembly blocking
Banned blocks are stopped from being included when a contraption is assembled.
Block and tag deny list
Individual blocks and block tags can be added to or removed from the deny list, which can also be listed in full.
Persistent restrictions
The deny list is saved and stays in effect across server restarts.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Server rule for contraptions
A server owner who wants certain blocks kept out of simulated contraptions can ban them there while leaving them available everywhere else.
Who it’s for: Server owners and operators who run Create contraptions with Sable and need to limit specific blocks in them.
How it compares
Item Banning is a server-side mod with MIT License open source code for Forge and NeoForge, covering 1.20.1 – 1.21.4, so it targets an older range and a different purpose. Step Get 2 is a NeoForge client and server mod for 1.21.8 under All rights reserved, and it is not open source. Aero Block Ban is also server-side only and All rights reserved, limited to 1.21.1 and NeoForge.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Aero Block Ban | NeoForge | 1.21.1 | Server-side only | 2026-07-19 |
| Item Banning | Forge and NeoForge | 1.20.1 – 1.21.4 | Server-side only | 2025-05-02 |
| Step Get 2 | NeoForge | 1.21.8 | Client and server | 2026-04-14 |
Questions
Does Aero Block Ban need to be installed on clients?
Which game version does Aero Block Ban support?
Does the deny list survive a server restart?
In the catalog
Aero Block Ban is one of 8,016 Management mods on ModsFinder, and one of 2,689 Management mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
Aero Block Ban is a utility mod that prevents certain blocks from being used inside simulated contraptions. This mod allows operators to restrict blocks that may cause issues on simulated contraptions while leaving normal block usage unchanged. While it should work with just Sable installed, its designed use is for…
Official listing
- Modrinth page
- modrinth.com/mod/aero-block-ban
- Owner
- Snakejac
- Published
- 2026-07-18
- Updated on Modrinth
- 2026-07-19
- Facts verified
- 2026-10-15