
Shrapnel Shard
Shrapnel Shard is a survival-focused companion mod for the Satsu Iron Man Addon, bringing the darker side of the Arc Reactor to Minecraft.
Just like Tony Stark, surviving the shrapnel is only the beginning. Build an Arc Reactor, manage its Palladium Core, monitor your poisoning, and research new Iron Man armor projects through the Stark Bench.
⚡ The Origin
Surviving a nearby TNT explosion grants you an Arc Reactor.
The reactor is only granted after you survive the explosion, and each player can receive this reward only once.
☢️ Palladium Poisoning
Wearing an Arc Reactor slowly exposes your body to palladium.
- Poisoning is permanently saved to your player.
- Removing the Arc Reactor does not cure you.
- Technology armor increases your exposure.
- Higher poisoning levels cause nausea, weakness, and poison effects.
- An expired reactor core dramatically increases the poisoning rate.
- Tier 2 reactors produce less poisoning.
- Reaching Reactor Tier 3 gradually removes poisoning completely.
🔋 Replaceable Palladium Cores
Arc Reactors now require replaceable Palladium Cores.
- Each core lasts for three Minecraft days.
- Core lifetime only decreases while the Arc Reactor is equipped.
- Expired cores become dangerous and increase palladium exposure.
- Craft a Replacement Palladium Core and install it using the Stark Bench.
- Replacing the core restores its full runtime and reduces poisoning by 15%.
🖥️ Stark Bench
The Stark Bench is the center of your Iron Man progression.
Use it to:
- Research Iron Man armor projects.
- Unlock suits in progression order.
- Spend XP levels on research.
- Build researched armor using collected materials.
- Replace an expired Palladium Core.
- Access dozens of Satsu Iron Man armor projects.
Starting from Mark 2, research requires Satsu's Blueprint Holder.
🧪 Treatments
Lithium Dioxide
A powerful treatment that removes 25% palladium poisoning.
When used with an advanced Tier 3 reactor, it can completely clear the remaining poisoning.
Chlorophyll Drink
A weaker but more accessible treatment that removes 5% poisoning.
Be careful—drinking too many doses can cause a dangerous overdose.
Palladium Poisoning Control Device
Right-click the device to view:
- Your current poisoning level
- Reactor tier
- Remaining Palladium Core runtime
🤖 JARVIS
JARVIS is currently disabled while the system is being polished.
The underlying system is still under development and is planned to return in a future update.
📦 Requirements
- Minecraft Java Edition 1.20.1
- Forge
- Satsu Iron Man Addon 3.2.0 or newer
- Palladium 4.5.5 or newer
- Curios API
- GeckoLib
Make sure all dependencies required by the Satsu Iron Man Addon are also installed.
📁 Installation
- Install Forge for Minecraft 1.20.1.
- Install Shrapnel Shard and all required dependencies.
- Place the downloaded files inside your
modsfolder. - Launch the game and survive the shrapnel.
Made by Shady1545
Special thanks to Robotic1545 and everyone in the community who shared feedback and waited for the update.
Ченджлог
1.3.1Релиз1.20.1 · 14 августа 2026 г.
Shrapnel Shard 1.3.1 — Stark Bench Update
Version 1.3.1 introduces the complete Stark Bench progression system, replaceable Palladium Cores, improved Satsu integration, and several visual and gameplay fixes.
Blueprint Progression
- Owning a Blueprint Holder no longer unlocks every suit.
- Each suit must first be properly unlocked through Satsu's Blueprint Holder.
- The Stark Bench checks the player's real Satsu tailoring recipe unlocks.
- All supported suit recipes were matched against Satsu Iron Man Addon 3.2.0.
- Previous suit research requirements still apply.
Shrapnel Origin
- Players must survive the TNT explosion before receiving an Arc Reactor.
- The Arc Reactor reward can only be received once.
- The reactor is placed directly into the correct Curios slot when possible.
Visual Updates
- Updated the Shrapnel Bottle texture.
- Updated the Chlorophyll Drink texture.
- Updated the Lithium Dioxide Syringe texture.
- Added the final Stark Bench Schematics texture.
Requirements
- Minecraft 1.20.1
- Forge
- Satsu Iron Man Addon 3.2.0+
- Palladium 4.5.5+
- Curios API
- GeckoLib
Thank you to everyone who shared feedback and helped improve the update!
1.3.0Релиз1.20.1 · 11 августа 2026 г.
Shrapnel Shard 1.3.0 — Stark Protocol Update
This update completely expands the Arc Reactor survival experience and introduces the new Stark Bench progression system.
Added

- Added the fully functional Stark Bench.
- Added research progression for Satsu Iron Man armor projects.
- Armor research now requires XP levels, previous projects, and Satsu's Blueprint Holder.
- Added the craftable Replacement Palladium Core with a unique texture.
- Palladium Cores last for three Minecraft days while the Arc Reactor is equipped.
- Cores can be replaced using the Stark Bench.
- Replacing a core restores its full runtime and reduces poisoning by 15%.
- Added reactor tier detection.
- Reaching Reactor Tier 3 gradually removes palladium poisoning completely.
- Added core lifetime, reactor tier, and poisoning information to the Palladium Poisoning Control Device.
- Added proper Satsu Iron Man Addon 3.2.0 compatibility.
Changed
- Palladium poisoning is now permanently saved to the player.
- Removing the Arc Reactor no longer resets poisoning.
- Technology armor increases palladium exposure.
- Tier 2 reactors produce less poisoning.
- An expired Palladium Core causes significantly faster poisoning.
- Lithium Dioxide now removes 25% poisoning.
- Chlorophyll Drinks remove 5% poisoning, but drinking too many still causes an overdose.
- TNT explosions only grant an Arc Reactor after the player survives the explosion.
- The explosion reward can only be received once per player.
- The Arc Reactor is now placed directly into the correct Curios slot when possible.
Stark Bench Fixes
- Fixed the Stark Bench collision box to match the full model.
- Fixed the invisible Stark Bench creative inventory preview.
- Fixed the Blueprint Holder detection using the correct Satsu item.
- Fixed missing and invalid Satsu armor registry references.
- Improved the Stark Bench interface layout.
- Added separate Research/Build and Replace Core buttons.
Temporarily Disabled
- JARVIS has been temporarily disabled while the system is being polished.
- All JARVIS code remains in the mod and will return in a future update.
Requirements
- Minecraft 1.20.1
- Forge
- Satsu Iron Man Addon 3.2.0+
- Palladium 4.5.5+
- Curios API
- GeckoLib
Thank you to everyone who waited for this update and shared suggestions!
1.2.6Релиз1.20.1 · 5 июня 2026 г.
Shrapnel Shard - v1.2.6 "Speed Dial"
A tiny update adding a highly requested command.
New Commands
/palladiumpoisoningspeed
/palladiumpoisoningspeed set <amount>— Change poisoning speed (0.1x - 10x)/palladiumpoisoningspeed reset— Reset to default speed/palladiumpoisoningspeed check— Check current poisoning speed
Made by @shady1545 | Special thanks to @robotic1545 for assistance
1.2.5Релиз1.20.1 · 4 июня 2026 г.
Shrapnel Shard - v1.2.5 "The Syringe"
A small but important update, introducing a new treatment item.
New Items
Lithium Dioxide
- Right-click to instantly reduce palladium poisoning by 10%
- Plays a unique sound on use
- 5 minute cooldown
- Applies Lithium Dioxide effect on use
Made by shady1545 | Special thanks to robotic1545 for assistance
1.2.0Релиз1.20.1 · 2 июня 2026 г.
Palladium Protocol - v1.2.0
New Features
Palladium Poisoning System
- Palladium poisoning increases by +1.1% every minute while Arc Reactor is equipped
- Removing the Arc Reactor resets poisoning to 0%
- Poisoning level is displayed on the action bar every 1% increase (no item required)
Chlorophyll Drink
- Drinking reduces palladium poisoning by -1%
- Drinking 5 times in a row causes Nausea and Poison for 15 seconds
- Counter resets after 30 seconds, allowing the cycle to repeat
Palladium Poisoning Control Device
- Right-click to display current palladium poisoning level
- Plays a sound on use
- 1 second cooldown
Technology Armor Warning System
- If technology armor is equipped and poisoning exceeds 60%, a 5-minute timer starts
- After 5 minutes: warning sound, damage, and a JARVIS alert message
- Nausea effect continues as long as armor remains equipped after the warning
/palladiumpoisoning Command
/palladiumpoisoning add <amount>— Increase poisoning/palladiumpoisoning reduce <amount>— Decrease poisoning/palladiumpoisoning check— Check current poisoning level
Made by shady1545 | Special thanks to robotic1545 for assistance
1.1.0Релиз1.20.1 · 19 мая 2026 г.
Shrapnel Shard 1.1.0 - (Mini Update)
- Capacity increases by 400% when struck by lightning.
1.0.0Релиз1.20.1 · 16 мая 2026 г.
Shrapnel Shard 1.0.0
Added Shrapnel
Added Shrapnel Bottle
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