ArcaThread
Real-time adaptive builds for League of Legends
Builds that adapt
while you play.
Recommends items every ~30s based on team comps, gold, components, and win conditions. No more static guides. Play the game as it unfolds.
~30s
Update interval
Real-time
Game state sync
Adaptive
Recommendations
App Preview
Real screenshots coming soon
Built Different
Most build tools give you static guides. We give you intelligence that adapts to your specific game.
Patch-Aware Data
Every recommendation uses current patch data. No more outdated builds from pre-rework champions.
Context-Aware Logic
Role, rank, and matchup-specific recommendations. Diamond support builds differ from Silver.
Riot Compliant
No injection, no memory reading, no hidden info. Uses only official LCU API.
From Draft to Nexus
Draft Intelligence
Get recommendations during champion select based on team composition and enemy picks.
Live Item Decisions
See your next optimal item purchase, updated every ~30 seconds as the game evolves.
Matchup Awareness
Counter-build against specific enemies. Armor stack detected? We suggest armor pen.
App Preview
Live build recommendation interface
Three steps to smarter builds
No configuration needed. Launch ArcaThread, play your game, and get real-time recommendations from the LCU API.
Auto-detects your game
ArcaThread connects to the League Client (LCU) API and automatically detects champion select and active games. No manual setup — just launch and play.
Champion select view
Real screenshot coming soon
Recommendations evolve live
During your match, ArcaThread reads publicly available game state and updates its build recommendations approximately every 30 seconds — adapting to how the game actually unfolds.
In-game recommendation view
Real screenshot coming soon
Learn from every match
After the game, review your build path alongside the recommendations. See where you followed the suggested path and where you diverged — and what the data says about each decision.
Post-game analysis view
Real screenshot coming soon
Everything you need to climb
From live game detection to cloud profiles, ArcaThread provides the tools you need to make better in-game decisions.
Live Game Detection
Automatically detects when you enter a match using the League Client API. No manual setup required.
Real-Time State Awareness
Tracks gold, level, items, enemy builds, and team compositions in real-time via LCU.
Adaptive Item Pivots
Recommends item changes based on game state: ahead/behind, enemy armor/MR, sustain, etc.
Match History & Insights
Review your build decisions post-game with performance analytics and recommendations.
ML-Powered Recommendations
Advanced machine learning models recommend optimal builds based on millions of match outcomes.
Cloud Profiles
Sync your settings, preferences, and build history across devices. Premium feature.
Background Tray Mode
Runs quietly in your system tray with minimal resource usage. No FPS impact.
Auto-Updates
Silent updates keep you on the latest version with new features and meta adjustments.
Performance-First Design
Optimized for minimal CPU/GPU usage. Built in Rust with Electron for efficiency.
Match History Analytics
Track your build performance over time. See which recommendations worked, which didn't, and how your decision-making improves with ArcaThread.
- Build win rate tracking
- AI-powered insights
- Cross-device sync
Analytics Dashboard Preview
Simple, transparent pricing
Start free. Upgrade when you're ready. No hidden fees, no surprises.
Feature Comparison
| Feature | Free | Premium |
|---|---|---|
| Live build recommendations | ||
| Real-time game state | ||
| Match history | 10 games | Unlimited |
| Cloud profiles | ||
| ML recommendations | ||
| Advanced analytics | ||
| Priority support |
Ready to adapt?
Download ArcaThread for Windows and start making smarter build decisions in your next League of Legends match.
Download for Windows
Version 1.0.0 • Windows 10/11
Windows SmartScreen
You may see a SmartScreen warning when running the installer. This is normal for new applications. Click "More info" then "Run anyway" to continue. Our executable is digitally signed and safe.
System Requirements
Installation Guide
Download Installer
Choose EXE or MSI format based on your preference.
Run Installer
Double-click the downloaded file and follow the setup wizard.
Launch ArcaThread
Start the app from your desktop or start menu.
Enter League Game
ArcaThread will automatically detect when you load into a match.
Questions? Answers.
Everything you need to know about ArcaThread. Can't find what you're looking for? Reach out to our support team.
Still have questions?
Contact our support team