Nemesis v0.1.0

Nemesis v0.1.0 — the first public release of a from-scratch Minecraft 1.19.3 (protocol 761) server core in Kotlin, revived and extended from Krypton.

⚠️ Experimental / alpha — a hobby & research project, not hardened for production. Runs in offline mode (no authentication). See SECURITY.md.

📦 Quick start

1. Install Java 21 (e.g. Temurin 21).
2. Download Nemesis-0.1.0.jar from the Assets below.
3. Run it:

   java -jar Nemesis-0.1.0.jar
   

4. Connect a Minecraft 1.19.3 client to localhost (the listen port is configurable in config.conf).

This is a standalone server, not a plugin — run it directly; do not place it in a plugins/ folder.

✨ Highlights

• Stable networking / session, core gameplay, and full inventory interactions
• Containers (chests / furnace / hopper / brewing), crafting, and XP
• Mobs with A* pathfinding AI, natural spawning, and PvP
• Redstone — wire / repeater / comparator / pistons, with cross-chunk propagation
• Full procedural world generation — terrain, caves, ores, trees, lakes, four biomes, villages & structures
• Fluids, crops, fishing, TNT, enchanting, potions & status effects
• Day-night cycle, sleeping, and block sounds & particles
• World / player / chest / XP persistence across restarts

See the full CHANGELOG for the complete list.

🛠 Build from source

Requires JDK 21:

./gradlew :jar:shadowJar    # -> jar/build/libs/Krypton.jar

📜 License

AGPL-3.0. Derived from Krypton (Apache-2.0, © KryptonMC and contributors) — see NOTICE.