Hammerspace
Hammerspace lets players craft controllers that each carry a pocket dimension of a chosen size, and the controllers can be upgraded through several tiers.
What it does
Crafting a controller creates an area of pocket dimension bounded by unbreakable hammerstone. Opening a controller from the hand menu, which appears on right-click, shows a set of fields for the identifier and the length, width and height of the space. The identifier accepts lowercase letters, digits, colons, slashes, underscores and hyphens, and it is split into a namespace and a name. Once the values are set, the check mark locks them in.
Two controllers may share the same identifier while differing in size, and the size is taken from the controller that was used first. Shift right-click increases the size, but the dimensions cannot be reduced. The identifier can be changed only before the controller is created. Upgraded crafting and smithing table controllers keep their data when they are upgraded, and the added size remains. Multiple tiers need to be upgraded in order, with the last tier completing the chain.
Hammerspace requires the Hammerspace dependency free content mod Minecraft, is published for Forge and NeoForge on 1.19.2 and 1.20.1, and is open source under the MIT License. The server and every player need the mod installed.
Key features
Carrying controllers
Players craft controllers that each hold a pocket dimension sized by the player.
Hand menu settings
Right-clicking with a controller in hand opens a menu for the identifier and dimension values.
Size growth only
Shift right-click enlarges a controller's size, and the size cannot be decreased afterwards.
Upgraded data transfer
Upgraded crafting and smithing table controllers keep their stored data across the upgrade.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Players who want extra storage space outside their base, and server owners who run survival or creative worlds where pocket spaces fit the setup. The mod is for Forge and NeoForge only.
How it compares
Pocket Dimension 1.21.1 is published for Forge and NeoForge across 1.20.1 – 1.21.1, under the Apache License 2.0, and is client and server. Simple Pocket Dimensions is a Forge mod for 1.20.1 with a client and server environment, released under the MIT License. Hammerspace is client and server, published for Forge and NeoForge on 1.19.2 and 1.20.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Hammerspace | Forge and NeoForge | 1.19.2 – 1.20.1 | Client and server | 2024-03-14 |
| Pocket Dimension | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-09-07 |
| Simple Pocket Dimensions | Forge | 1.20.1 | Client and server | 2025-06-03 |
Questions
Does Hammerspace require another mod?
Do both sides need Hammerspace?
Which loaders does Hammerspace support?
In the catalog
Hammerspace is one of 4,058 Storage mods on ModsFinder, and one of 1,886 Storage mods for Forge. 34,764 mods support Minecraft 1.20.1.
More from itsmenotjames
Similar mods
What the author says
In Hammerspace, you can craft items known as controllers. By right-clicking with these controllers in your hand, a menu opens up. In this menu, you can type in an id (a-z:/- are the allowed characters). If this id contains two pieces of text separated by a ":", the dimension will have that as its namespace, instead…
Official listing
- Modrinth page
- modrinth.com/mod/hammerspace
- Owner
- itsmenotjames
- Published
- 2023-07-03
- Updated on Modrinth
- 2024-03-14
- Facts verified
- 2026-10-15