About prefab-custom-addon
From ModrinthA NeoForge addon for Prefab 1.20.1,1.21.1, adds custom building extension packs, works for both client and dedicated server。
预制建筑附属 (Prefab Custom Addon)
Prefab 模组的附属扩展,让预制建筑模组可以自定义建筑。自定义建筑的过程完全图形化,只需要准备蓝图即可。
支持版本:1.21.1 (NeoForge) / 1.20.1 (Forge)
主要功能
建筑浏览器
- 浏览本地拓展包中的所有建筑,支持分类、收藏、搜索
- 3D 实时预览,鼠标悬浮可查看方块信息(配合 JEI/EMI 可查询)
- 网站标签页:在线建筑库浏览与一键下载
- 服务器标签页:查看服务器上可建造的建筑,一键建造
服务器建筑上传
- 单人/多人通用:单人游戏可直接建造。多人游戏把本地建筑一键上传到服务器,上传后就能直接建造
- 支持
.nbt/.litematic/.schem格式,上传时自动转换打包 - 自动检测建筑依赖,依赖缺失时阻止上传并给出提示
- 服务器端防滥用:单文件大小限制、上传冷却、缓存总量上限
- OP 可在管理界面删除建筑、控制玩家的上传权限
依赖检测
- 建筑详情页会自动列出建筑用到的模组方块是否齐全
- 缺失的依赖直接点击即可在游戏内搜索 Modrinth,找到对应模组
缺失方块占位
- 遇到没安装的模组方块,不再凭空消失,而是显示「?」方块
- 一眼看出建筑哪里缺东西,补上依赖后重新加载即可
建筑终端
手持建筑终端右键打开,集成了建筑相关的一切:
- 建筑选择:浏览全部建筑并建造
- 创建建筑:从外部文件(litematic / schem / nbt)导入,或直接在游戏内框选区域创建
- 编辑原理图:逐方块修改建筑,支持撤销
- 分类管理:自定义建筑分类
其他
- 外包建筑蓝图:内置 8 个精美建筑的蓝图,合成后可预览并一键建造
- 自定义推土机:清除区域 1~256 可调,可关闭掉落物
- Jade 兼容:看向建筑时显示名称、尺寸、放置者
- 材料交付:在详情页提交材料,交付进度实时显示
运行环境
| 依赖 | 说明 | |---|---| | Prefab | 必需,本模组是其附属 | | LDLib2 | 必需,界面与渲染框架 |
安装
放入 mods 文件夹即可。
服务器
多人服务器:用本模组创建的建筑,可以直接上传到服务器里,提交好材料就可以直接放置建筑。服主和管理员可以禁止玩家上传建筑,删除已上传的建筑。
Prefab Custom Addon
An addon for Prefab that lets you add custom buildings to the Prefab mod. The whole process is fully in-game and graphical — all you need is a blueprint.
Available for: 1.21.1 (NeoForge) / 1.20.1 (Forge)
Features
Building Browser
- Browse all buildings from your local extension packs, with categories, favorites and search
- Real-time 3D preview with hover tooltips on blocks (works with JEI/EMI lookup)
- Website tab: browse and download buildings from an online library
- Server tab: see which buildings are buildable on the server and build them directly
Building Upload & Sync
- Singleplayer and multiplayer: build directly in singleplayer. On servers, upload a local building with one click and it's ready to build
- Supports
.nbt/.litematic/.schem— automatically converted and packed on upload - Automatically checks building dependencies; upload is blocked with a clear message if something is missing
- Server-side anti-abuse: per-file size limit, upload cooldown, cache quota
- Admins (OP) can delete buildings and manage per-player upload permissions in a manage screen
Dependency Detection
- The detail page lists every modded block type a building needs, checked against your installed mods
- Missing dependencies are clickable — search Modrinth in-game and find the mod right away
Missing Block Placeholder
- Blocks from mods you don't have installed show up as a "?" block instead of silently vanishing
- Instantly see what's missing and where; install the dependency and reload
Building Terminal
Right-click with the Building Terminal in hand for everything building-related:
- Buildings: browse and build everything
- Create: import from files (litematic / schem / nbt), or select an area in-game
- Schematic Editor: block-by-block editing with undo
- Categories: organize your buildings
More
- Outsource building blueprints: 8 pre-made building blueprints included — craft, preview and build
- Custom Bulldozer: adjustable clearing area from 1 to 256, item drops optional
- Jade compatibility: shows building name, size and placer when looking at one
- Material delivery: submit materials on the detail page and watch the progress
Requirements
| Dependency | Note | |---|---| | Prefab | Required — this is an addon for it | | LDLib2 | Required — UI & rendering framework |
Installation
Drop the jar into the mods folder.
Multiplayer
Multiplayer: buildings created with this mod can be uploaded straight to the server — deliver the materials and place the building. Server owners and admins can deny upload permissions for players and delete uploaded buildings.
Highlights
From source dataGame versions
Supports 2 Minecraft versions, the newest being 1.21.1.
Loaders
Runs on Forge and NeoForge.
Footprint
Rated a light load on a server.
prefab-custom-addon on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Required on the server
- Server type needed
- Forge, NeoForge
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 2.7.1, released 2026-11-04
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Forge | 1.20.1 | 1.20.1 |
| NeoForge | 1.21.1 | 1.21.1 |
From 16 recorded builds of prefab-custom-addon.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 2.7.1 | 2026-11-04 | 1.21.1 | NeoForge |
| 3.0.1 | 2026-11-01 | 1.20.1 | Forge |
| 3.0.0 | 2026-10-30 | 1.20.1 | Forge |
| 2.2.0 | 2026-10-22 | 1.20.1 | Forge |
| 2.7.1 | 2026-10-15 | 1.21.1 | NeoForge |
| 2.1.0 | 2026-10-15 | 1.20.1 | Forge |
Dependencies
- Required: modrinth project pTJ1ZloG (modrinth, not in our catalogue)
- Required: modrinth project B1CBVXHX (modrinth, not in our catalogue)
Declared by the newest build that lists any. Required ones are installed with it on one-click installs.
Run prefab-custom-addon on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogBuilding & decoration
Blocks, furniture, decorations and building tools.
Runs on your server
From source side supportModrinth lists prefab-custom-addon as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- ForgeNeoForge
- Runs on
- Serverrequired on the server
- Game versions
- 1.21.1 and 1 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-11-04Open ↗
- ✓Authorveyne, as published on Modrinth
- ✓LicenseMITFree












