
More Offhand Slots
Adds more offhand slots that you can cycle through using keybinds.
Screenshots




About this Mod

Ever wished you could have more than one offhand item? Now you can!
⚠️IMPORTANT⚠️
Updating from a Curios-based version? This mod has migrated from Curios to a new custom slot system (SlotLib). When updating, items stored in your offhand Curios slots may be lost!
Curios will attempt to return items to your main inventory when its slots are removed, but if your inventory is full, those items will be deleted permanently.
Before updating: Empty your offhand slots manually, or make sure you have plenty of free inventory space. Back up your world save just in case!
What Does This Mod Do?
More Offhand Slots gives you extra offhand slots that you can cycle through with keybinds or the scroll wheel. Equip a shield, a torch, a totem, and a map all in your offhand -- and swap between them instantly!
No more digging through your inventory mid-combat to switch your offhand item.


✨ Features
🖐️ Multiple Offhand Slots
Hold up to 9 items in your offhand (default: 3). Cycle between them with Mouse Button 4/5, or configure the scroll wheel to do it for you.
👁️ Visual Indicators
See what's coming next! Choose from four indicator styles to keep track of your offhand items:
- Default - Clean indicator showing previous and next items
- Detailed - Shows item counts alongside the indicator
- Vanilla - Keeps the vanilla offhand look, functionality stays
- Hotbar - A full hotbar for your offhand, just like the main hand
🖱️ Scroll Wheel Modes
Pick the control scheme that works for you:
- Vanilla - Scroll works normally, use keybinds for offhand
- Offhand Only - Scroll always cycles offhand items
- With Modifier - Hold a key to switch between scrolling hotbar or offhand
🎨 Fully Customizable
- Reposition the HUD indicator with X/Y offsets
- Center-align the hotbar when using many slots
- Toggle cycling through empty slots
- Invert scroll direction
🚀 Getting Started
- Install the mod (requires NeoForge)
- By default you get 3 extra offhand slots
- Use Mouse Button 5 to cycle forward, Mouse Button 4 to cycle backward
- Open the config to tweak the number of slots, indicator style, and controls
🎮 Controls
| Default Key | Action |
|---|---|
| Mouse Button 5 | Cycle forward |
| Mouse Button 4 | Cycle backward |
| Left Shift | Scroll wheel modifier |
All controls can be rebound in the Minecraft controls menu.
🗃️ Extra Inventory Screen
More Offhand Slots comes with SlotLib, which adds a button to your inventory screen. Click it to open the extra slot inventory where you can manage all your offhand items directly!

The button position is configurable if it overlaps with other mods.
⚙️ Configuration
All settings are available in moreoffhandslots-client.toml or through an in-game config screen (with YACL or similar).
| Setting | What It Does |
|---|---|
| Indicator Style | Change the offhand HUD look (Default/Detailed/Vanilla/Hotbar) |
| Scroll Mode | How the scroll wheel interacts with offhand slots |
| Empty Slot Behavior | Empty slot cycling behavior (Skip/Cycle/Collape) |
| Render Empty Offhand | Show the indicator even with nothing equipped |
| HUD X/Y Offset | Reposition the offhand indicator |
| Align to Center | Center both hotbars on screen |
🗃️ SlotLib Settings
SlotLib (the inventory system bundled with the mod) has its own config in slotlib-common.toml and slotlib-client.toml:
| Setting | What It Does |
|---|---|
| Slot Count | Number of extra inventory slots (1-9, default: 3) |
| Button Corner | Where the SlotLib button appears in your inventory (TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, BOTTOM_RIGHT) |
| Button X/Y Offset | Fine-tune the button position in the survival inventory |
| Creative Button X/Y Offset | Fine-tune the button position in the creative inventory |
🤝 Compatibility
- Better Combat - Detected automatically; prevents cycling when holding two-handed weapons
- Auto HUD - Supported
- Create - Supported
- Resource Packs - Uses vanilla textures, so resource packs work out of the box!
💜 Credits
Inspired by Inventorio by Lizard_OfOz and Slot Cycler by Fuzs.
SlotLib is based on Curios API by TheIllusiveC4.
Available Versions
How to Install More Offhand Slots on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "More Offhand Slots". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.8, 1.21.5 (+2 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
More Offhand Slots server crashes on startup – what to do?
Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is More Offhand Slots compatible with forge and neoforge?
More Offhand Slots officially supports forge, neoforge for Minecraft 1.21.11, 1.21.8, 1.21.5. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with More Offhand Slots – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if More Offhand Slots consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install More Offhand Slots with just one click on your server.