Challenge library
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A collection of exciting and varied Minecraft challenges, including an In-game Selection Menu, Full Multiplayer Support, and more!
Includes a large focus on traversing worlds with enhanced world generation, structures, dungeons, and more for players to find unique loot.
Fabric is a mod loader for versions 1.14+ of Minecraft, particularly popular for client side and optimization mods.
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Description
Challenge Library
Challenge Library is a modular challenge mod for Fabric that adds fast, high-pressure gameplay for singleplayer and multiplayer worlds.
Create custom challenge runs in seconds, combine compatible challenges, switch to random challenge rotations, generate challenge maps, and manage everything in-game.
Note:
This is not a library or API mod.
It is a standalone Minecraft mod that directly adds new in-game challenges and does not require any additional dependencies beyond the standard mod loader.
Why Challenge Library?
- Fast setup with no complicated configuration
- Multiple challenge modes in one clean system
- In-game selection, descriptions, and session controls
- Random challenge rotation for endless variety
- Challenge maps for structured custom worlds
- Multiplayer-ready challenge flow
- Great for challenge videos, streams, and SMP events
Features
- In-game challenge menu with descriptions
- Select multiple challenges with compatibility checks
- Random Challenge Mode with selectable challenge pools
- Configurable random switch intervals
- Challenge Maps menu for map-based challenge worlds
- One Chunk map generation directly from the mod
- Full settings menu with general, timer, UI, and data tabs
- Start, stop, and resume challenge sessions
- Synced session flow for multiplayer
- Clear feedback via chat, actionbar, and HUD
- Persistent config and session state
- Localization: English and German
Included Challenges
One Inventory Slot
Only the first hotbar slot and offhand are usable.New Chunk, Random Mob
Entering a new chunk can trigger a random mob encounter.Find The Item, Or Die
A timed target item must be found before the timer ends.Don't Stop Moving
Standing still too long causes lethal damage.Block Drop Randomizer
Blocks drop randomized items, consistent per world and dimension.Mob Drop Randomizer
Mob drops are randomized by mob type.Changing Gravity
Gravity changes over time.No Jumping
Jumping is fully disabled.Ultra Fog
Visibility is heavily reduced.Ultra Hardcore
No natural regeneration; death is heavily punishing.Block Cooldown
Blocks can only be placed after a cooldown.Higher Level, Bigger Border
The world border grows as you level up.Nether Start
Start your challenge run in the Nether.Name & Texture Shuffle
Minecraft names and textures are shuffled for a chaotic twist.
Commands
/challenge select <id>
/challenge start
/challenge stop
/challenge status
/challenge describe <id>
Multiplayer
Challenge Library is designed for co-op and SMP challenge runs:
- Shared pressure and consequences
- Synchronized challenge state
- Great for events and creator challenges
- Works well with random challenge rotations and map-based runs
Development Status
Challenge Library is in active development.
More challenges, balancing updates, random mode improvements, challenge maps, and new gameplay features are planned for upcoming versions.
Requirements
- Minecraft:
>= 26.1.2 - Fabric Loader:
>= 0.19.1 - Fabric API: required
- Java:
>= 25
License
MIT License
Challenge Library
Challenge Library is a modular challenge mod for Fabric that adds fast, high-pressure gameplay for singleplayer and multiplayer worlds.
Create custom challenge runs in seconds, combine compatible challenges, switch to random challenge rotations, generate challenge maps, and manage everything in-game.
Note:
This is not a library or API mod.
It is a standalone Minecraft mod that directly adds new in-game challenges and does not require any additional dependencies beyond the standard mod loader.
Why Challenge Library?
- Fast setup with no complicated configuration
- Multiple challenge modes in one clean system
- In-game selection, descriptions, and session controls
- Random challenge rotation for endless variety
- Challenge maps for structured custom worlds
- Multiplayer-ready challenge flow
- Great for challenge videos, streams, and SMP events
Features
- In-game challenge menu with descriptions
- Select multiple challenges with compatibility checks
- Random Challenge Mode with selectable challenge pools
- Configurable random switch intervals
- Challenge Maps menu for map-based challenge worlds
- One Chunk map generation directly from the mod
- Full settings menu with general, timer, UI, and data tabs
- Start, stop, and resume challenge sessions
- Synced session flow for multiplayer
- Clear feedback via chat, actionbar, and HUD
- Persistent config and session state
- Localization: English and German
Included Challenges
-
One Inventory Slot
Only the first hotbar slot and offhand are usable. -
New Chunk, Random Mob
Entering a new chunk can trigger a random mob encounter. -
Find The Item, Or Die
A timed target item must be found before the timer ends. -
Don't Stop Moving
Standing still too long causes lethal damage. -
Block Drop Randomizer
Blocks drop randomized items, consistent per world and dimension. -
Mob Drop Randomizer
Mob drops are randomized by mob type. -
Changing Gravity
Gravity changes over time. -
No Jumping
Jumping is fully disabled. -
Ultra Fog
Visibility is heavily reduced. -
Ultra Hardcore
No natural regeneration; death is heavily punishing. -
Block Cooldown
Blocks can only be placed after a cooldown. -
Higher Level, Bigger Border
The world border grows as you level up. -
Nether Start
Start your challenge run in the Nether. -
Name & Texture Shuffle
Minecraft names and textures are shuffled for a chaotic twist. -
No Tools
Crafting or using tools is fully disabled.
Commands
/challenge select <id>
/challenge start
/challenge stop
/challenge status
/challenge describe <id>
Multiplayer
Challenge Library is designed for co-op and SMP challenge runs:
- Shared pressure and consequences
- Synchronized challenge state
- Great for events and creator challenges
- Works well with random challenge rotations and map-based runs
Development Status
Challenge Library is in active development.
More challenges, balancing updates, random mode improvements, challenge maps, and new gameplay features are planned for upcoming versions.
Requirements
- Minecraft:
>= 26.1.2 - Fabric Loader:
>= 0.19.1 - Fabric API: required
- Java:
>= 25
License
MIT License
Screenshots
Gallery
-
Start Challenge A custom chat color is set for each challenge -
One Inventory Slot -
Freely placeable timer You can freely move the timer via drag and drop, and through the grid it is always in the correct position. -
New Chunk, Random Mob -
Block Cooldown You have a cooldown for placing blocks
-
Start Challenge Here you can see the start challenge button in the chat -
One inventory slot You only have one Inventory slot and the off-hand -
New chunk, new mob If you enter the chunk, a random mob spawns -
New Chunk, New Mob -
Freely placeable timer You can freely move the timer via drag and drop, and through the grid it is always in the correct position. -
All 15 challenges Here you can see all the challenges that are included in the challenge library mod -
Timer settings Here you can set the color, size, and format of the timer and deactivate it. -
Timer color settings Here you can adjust the color of the timer live -
Name & Texture Shuffle It may not look like it, but this block is actually a log. This challenge makes crafting and inventory management particularly difficult. -
Block Cooldown You have a cooldown for placing blocks -
Don't stop Moving If you stop moving, you die -
Don't stop Moving -
Block drop randomizer If you break a block, a ranom item drops -
Find the item, or die
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