This is a Minecraft Fabric mod which adds a growing collection of unique challenges into Minecraft. A "6T4" button is added to the title screen and pause menu where challenges can be toggled and configured.

6T4 Menu Screen

Almost all the challenges were made for a video or a live stream I have done on my YouTube channel. So if you want to watch and learn more about them, there's a good chance a video exists regarding that specific challenge.

I made this mod with content creation in mind. I wanted something I could keep adding to rather than making a new mod for every idea, and a way to give back to the community. So this is especially made for fellow creators. It's very easy to toggle a challenge on and off and add your own twists with modifiers, configurable options, and/or challenge combinations.

Just make sure to follow the license instructions and show some love back by crediting me when using this mod in a video or stream (:

Features

Adds a "6T4" button to the title screen and pause menu
Toggle and configure challenges individually, no restarts needed
Stack multiple challenges at once for unique combinations
Most challenges have configurable options
Modifiers to globally tweak the game on top of any challenges
Seasonal challenges
In-game HUD overlay showing active challenges (toggle via keybind)
Each challenge shows its multiplayer compatibility status

Modifers screen

Getting started: Install the mod, click the "6T4" button on the title screen or pause menu. Toggle any challenges on or off and jump in. On a server, changes sync to all players automatically as long as you have OP.

Pointing at 6T4 Button Pointing at 6T4 button in pause screen

Multiplayer: Compatibility is added to most challenges where possible. But seeing as I personally do 99% of these challenges alone, it's likely that multiplayer won't always work as expected.

Versions: This mod will be actively maintained only for the latest supported Minecraft version.

Available Challenges

Almost every challenge has configurable options - feature toggles, intensities, distances, difficulty tweaks, and more. Open the options for any challenge from the 6T4 menu.

The goal is to eventually have 64+ challenges in total. Hence the name :b

Challenge	Description
Can't Touch Green	You die if you touch any green blocks, items, or mobs.
Can't Touch Red	You die if you touch any red blocks, items, or mobs.
Can't Touch Blue	You die if you touch any blue blocks, items, or mobs.
Disappearing Blocks	Blocks disappear when you walk off them.
Exploding Mobs	All mobs will explode when they die.
Can't Breathe Air	You drown in air but can breathe in liquids, suffocating blocks, and with water breathing potions. Respiration enchantment helps you breathe in air longer.
Super Knockback	When you take damage, you receive enhanced knockback that sends you flying.
Ender Pearl on Damage	When you take damage, an ender pearl shoots out randomly with configurable speed and arc. Ender pearl damage is disabled to prevent infinite teleportation.
Faster Mobs	All mobs move faster than normal.
Flame On	You are always on fire and can never be extinguished (Water toggle in options).
No Experience	Gaining any experience kills you instantly. This includes XP from mob kills, blocks, and other sources of experience.
Invisible Mobs	All mobs are invisible.
Mob Spawn on Eat	Eating anything spawns a random mob near you.
Random Drops	Every block and mob drop is randomized every single time, no loot table swapping.
Can't Use 'A'	You die if you pick up any item or block with a display name containing the letter 'A'.
Bedrock Trail	Blocks turn into bedrock when you walk off them.
Lava Trail	Lava appears where you walk.
Mob Disappearing Blocks	Blocks disappear when any mob steps off them.
Teleportation Only	Can only use the provided Infinite Ender pearl or Infinite Chorus fruit to move around. Movement keys are disabled.
Trident Rain	Tridents rain down from the sky.
TNT Rain	TNT rains down from the sky.
Anvil Rain	Anvils rain down from the sky.
Arrow Rain	Arrows rain down from the sky.
Potion Rain	Potions rain down from the sky.
Gift	Only available in December. While active, you receive random gifts on a timer - items, mobs, or other entities.
Dimensional Rift	MUST ACTIVATE EXPERIMENTAL MODE - tells the client it is in the Nether while the server keeps you in the Overworld, force-loads scaled Nether chunks, and routes Nether mob tracking. Expect bugs, glitches, and possible crashes.

...and many more challenges on the way!

Modifiers

Modifiers are global tweaks that apply on top of any challenges. Mix and match them freely.

Modifier	Description
Player Scale	Changes the size of all players.
Heart Count	Sets how many hearts all players have.
Movement Speed	Base speed for all players.
Peaceful Completion	Allows beating the game whilst in Peaceful difficulty.
No Natural Regen	Disables natural health regeneration from hunger.
Real Time Timer	Shows a real-time timer on screen. Counts up continuously, even when paused or in menus.
In-game Timer	Shows an in-game timer on screen. Only counts up while you are actually playing.
Start in Nether	On a new world, you spawn in the Nether instead of the Overworld.