Table of Contents
If you’re wondering how to run a Star Technology modpack server in Minecraft, this guide covers everything from setup to optimization in simple language. Whether you want to host on your PC or rent a server, you’ll follow each step confidently with no tech headaches.
What Is Star Technology Modpack?
The Star Technology modpack is a high-tech Minecraft experience built on GregTech CEu Modern, originally for MC 1.19.2 and now updated to 1.20.1.
Packed with automation, machinery, oil rigs, void miners, and even Stargate-style progression, it caters to tech lovers who want science over magic. It’s not designed for beginners, but a quest book and regular updates help users ease into its complex systems.
Requirements & Preparation
- Java 17 required: Modern Forge modpacks like Star Technology need Java 17 servers won’t work properly on Java 8.
- RAM: Minimum 4 GB to run the server, and 6 GB or more is recommended if you have friends joining
- Server files: Download the official server pack (forge-based) for version 1.20.1 + hotfix from CurseForge.
Setting Up Locally
- Download the server zip from CurseForge (Server Packs section for Star Technology).
- Extract it into a folder, e.g., StarTechServer.
- Configure Java arguments in user jvm_args.txt: diff CopyEdit-Xms4G-Xmx6G.
- Accept EULA, open eula.txt, and change eula=false to eula=true.
- Run the server: On Windows, open run.bat or in a terminal use: swift CopyEdit java @user_jvm_args.txt @libraries/…/win_args.txt nogui. Replace the path with your Forge path. The script handles everything.
- The first launch builds the necessary libraries, mods, world files, and map. After initialization, share your server (via local IP or port forwarding).
Hosting on a VPS or Hosted Panel
If you want 24/7 uptime or plan to play with friends, hosting on a service is easier:
- SparkedHost, StickyPiston, CreeperHost, and mTxServ support Star Technology modpack with one-click installers.
- They include both server and client versions (Java 17 + Forge) and tools for memory allocation and updates.
- Recommended hosting specs include 6 GB of memory, a multi-core CPU, SSD storage, and control panel support.
Steps (generally):
- Choose a hosting plan (≥ 6 GB RAM).
- Choose the Star Technology modpack and make sure to pick the 1.20.1 hotfix version if possible.
- Install via control panel (Multicraft, etc.).
- Accept EULA and set RAM via the panel.
- Run the server, copy the IP, and invite friends.
Performance & Optimization Tips
- Java flags (especially on the client side) are essential:
ruby CopyEdit -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Helps smooth out lag spikes.
- Allocate memory carefully: 4 GB for small groups; 6–8 GB for more players.
- SSD storage: Essential for fast load times.
- Scheduled restarts: Help avoid memory leaks.
- Backups: Always back up your world/ folder before updates or server changes.
Troubleshooting Common Issues
No forge*.jar found
New Forge server packages use @user_jvm_args.txt. scripts instead of a direct jar. Don’t worry, it’ll still run fine as long as the scripts are the same. “Could not find or load main class @user_jvm_args.txt”
Often caused by:
- Java version mismatch (ensure Java 17).
- File path spacing (no spaces in server path).
- Improperly used flags use the default user_jvm_args or are copied correctly.
Memory errors/lag
- Lower view distance in server.properties.
- Add more RAM.
- Use the Java flags above.
- Check logs for specific mod conflicts.
Client-server version mismatch
Always use the same modpack build/version for both. Update the server first, then the client.
How Much RAM Do You Really Need to Run Star Technology Modpack Server Minecraft?
- To run a Star Technology modpack server for Minecraft, you should have at least 4 GB of RAM for very small private servers or testing.
- For smooth gameplay with a few friends (around 3–5 players), it’s best to allocate 6–8 GB of RAM to avoid lag and crashes.
- If you plan to host more than 10 players or add extra mods, aim for 8–10 GB or more, depending on your server specs.
- Always use Java 17 as required by the modpack, and check your user_jvm_args.txt to adjust memory settings properly.
- Remember, allocating too much RAM can hurt performance; balance it based on your system’s total memory.
- Using SSD storage and lowering view distance in server.properties can also help improve performance without extra RAM.
Final Checklist
| Step | Completed? |
| Java 17 installed | ☐ |
| 4–6 GB+ RAM available | ☐ |
| Server files downloaded | ☐ |
| user_jvm_args set | ☐ |
| EULA accepted | ☐ |
| The server starts with no errors | ☐ |
| Server accessible by friends | ☐ |
| The client uses the same modpack version | ☐ |
| Performance optimized | ☐ |
| Automated backups scheduled | ☐ |
Enjoy & Expand
Now you’re running the Star Technology modpack server like a pro! Feel free to:
- Customize with additional mods/plugins.
- Try pack modes like Hardmode or Abydos Start.
- Explore Stargates, power systems, or skyblock-style challenges.
- Join the CurseForge or Discord community for updates and support.
Conclusion
Running a Star Technology modpack server for Minecraft isn’t too hard if you follow a few key steps. Install Java 17, set enough RAM to keep gameplay smooth, and always use the modpack’s launch scripts to load everything properly. Make sure your server and game versions match to avoid connection issues. If this feels too technical, many hosting services offer easy one-click setups. With these steps, you’ll be ready to build your futuristic world with Stargates, oil rigs, and machines, and if you get stuck, there’s a big community and guides to help you.
