# LumaClient 5.0 — Full-featured FPS Boost Minecraft Client & Launcher

> LumaClient (https://lumaclient.pl) is a free, full-featured FPS Boost Minecraft Java Edition client and launcher for Windows 10/11 (64-bit). It integrates modern rendering optimization engines (Sodium + Lithium + ImmediatelyFast), supports Vanilla, Fabric, Forge, and NeoForge, comes with a bundled Java 21 LTS runtime, built-in Modrinth mod browser, `.mrpack` modpack drag-and-drop import, Microsoft OAuth + Offline accounts with custom `.png` skins, AI crash log diagnostics, and a dedicated PvP/FPS HUD suite.

## Quick Facts
- **Name:** LumaClient
- **Latest Version:** 5.0.0
- **Category:** Minecraft FPS Boost Client / Minecraft Launcher / Modpack Manager
- **Platform:** Windows 10 / Windows 11 (64-bit)
- **Bundled Runtime:** OpenJDK Java 21 LTS included in installer (`LumaClient-Setup-5.0.0.exe`, 41.4 MB)
- **Supported Mod Loaders:** Vanilla, Fabric, Forge, NeoForge (Minecraft 1.7.10 – 1.21.4+)
- **Account Types:** Official Microsoft OAuth2 (Premium) and Offline Accounts (Non-Premium) with custom `.png` skin upload (Classic Steve & Slim Alex)
- **Price & Monetization:** 100% Free (0 PLN / $0), zero ads, zero microtransactions, zero paid cosmetics
- **Languages:** Polish (PL) and English (EN)
- **Author:** Eryczus (`_eastplaya`)
- **Official Website:** https://lumaclient.pl
- **English Website:** https://lumaclient.pl/en/
- **Discord Community:** https://dc.lumaclient.pl
- **GitHub Releases:** https://github.com/Eryczussuda/LumaClientUpdates

## Core Features in LumaClient 5.0
1. **Full-Featured FPS Boost Suite:** Native rendering engine optimizations (Sodium, Lithium, ImmediatelyFast, EntityCulling) configurable straight from the client, with smart JVM garbage collector tuning (Aikar G1GC / ZGC) and instant chunk streaming.
2. **Multi-Loader Instance Management:** Run Vanilla, Fabric, Forge, and NeoForge installations side by side. Supports isolated instance directories (`%APPDATA%\.luma\instances\`) and shared mod folder profiles.
3. **Luma In-Game Client (PvP & FPS Suite):** Built-in overlays and optimizations including FPS & CPS Counter, Keystrokes (WASD + Mouse), Armor & Durability HUD, Smooth Zoom (`C` key), Fullbright (Gamma boost), Toggle Sprint/Sneak, XYZ Coordinates & Compass.
4. **Built-in Modrinth Browser & `.mrpack` Import:** Search and install mods directly from Modrinth API filtered by game version and loader, or drag-and-drop `.mrpack` modpack archives into the launcher window.
5. **Microsoft & Offline Custom Skins:** Log in with Microsoft OAuth2 or play offline with a custom `.png` skin and 2D preview.
6. **AI Crash Log Analyzer & Live Console:** Automatically inspects game crash logs and explains in plain language which mod or missing dependency (e.g. `fabric-api`) caused the crash.
7. **QuickJoin, World Backups & Session History:** Join multiplayer servers directly from the launcher home bar, back up singleplayer worlds, and track playtime.

## Documentation & Key Pages
- [Homepage (PL)](https://lumaclient.pl/): Main Polish page with interactive launcher preview, comparison table, and downloads.
- [Homepage (EN)](https://lumaclient.pl/en/): English page with full feature overview and downloads.
- [Full AI & Technical Reference](https://lumaclient.pl/llms-full.txt): Detailed technical specifications, SHA-256 checksums, and comparison data.
- [Changelog (PL)](https://lumaclient.pl/changelog.html): Release notes for LumaClient 5.0.0, 4.0.0 and 3.0.0.
- [Changelog (EN)](https://lumaclient.pl/en/changelog.html): English release notes.
- [Privacy Policy](https://lumaclient.pl/privacy.html): Local-first data storage policy (`%APPDATA%\.luma`).
- [Terms of Service & Licenses](https://lumaclient.pl/terms.html): Usage terms, zero-fee policy, and open-source attributions.