AtomicsLib
This is a library datapack which adds all the annoying things you end up making everytime. Free Minecraft Java datapack for 1.21, 1.21.1, 1.21.2.
⬇ Download on Modrinth
⚛️What is AtomicsLib?
AtomicsLib is a high-performance utility library for datapack developers that provides powerful backend systems so you can focus on building mechanics instead of rewriting infrastructure.
Designed for scalability, multiplayer safety, and predictable execution.
🔧 Core Features
- 🎯 Raycasting engine
- ⏱️ Entity-based scheduler
- 🏃 Movement detection
- ❤️ Combat-focused damage detection
- 🧮 Optimized math utilities
⚡ Built for Developers AtomicsLib is not a gameplay pack — it’s infrastructure.
Use it to power:
- abilities
- weapons
- AI systems
- cooldowns
- advanced mechanics
- large datapack frameworks
📚 Full Documentation The complete Developer API, usage examples, and deep technical explanations are hosted on Discord:
👉 Documentation & Developer API
If you plan to build with AtomicsLib, joining the Discord is strongly recommended.
Build mechanics — not scaffolding.
- Downloads as AtomicsLib_DP - V1.2.zip
- Download size: 285 KB
- Download link checked 22 Aug 2026 — working
These come from our own check of the pack file, not from the source page.