// modpack server guide
Lost World: The Broken Script server hosting & setup guide
A Lost World: The Broken Script server needs Java 21 and about 6–8 GB of RAM for up to 15 players.
A challenging Horror Modpack which slowly destroys your world while dangerous creatures are watching you - Now with TBS 2.0!
Summary from Lost World: The Broken Script on Modrinth.
Lost World: The Broken Script is a NeoForge modpack for Minecraft 1.21.1 with 130 mods. We'd pick our Premium plan (8 GB) for it.
Quick facts
| Loader | NeoForge |
|---|---|
| Minecraft versions | 1.21.1 |
| Java needed | Java 21 for Minecraft 1.21.1 Java version chart. |
| Mods | 130 modsCounted from the pack's file list on Modrinth. None are marked client-only. |
| RAM | About 4.5–5 GB for 1–3 playersBy player count. |
| Downloads | 115,290 on Modrinth |
| Last updated | June 1, 2026 (version 3.6.0) |
| First published | February 20, 2025 on Modrinth |
| Server support | Required: the pack has mods that must run on the server. |
| Server pack | [3.6.0 - Server] Lost World - The Broken Script.zipOfficial server pack on CurseForge, for [3.6.0] Lost World - The Broken Script, the same version Modrinth has. Checked October 5, 2026. |
| Modrinth tags | adventure, challenging, quests |
Lost World: The Broken Script server files
Yes, on CurseForge. Modrinth has no separate server pack for Lost World: The Broken Script, but the authors publish one on CurseForge: [3.6.0 - Server] Lost World - The Broken Script.zip, for [3.6.0] Lost World - The Broken Script (May 29, 2026). That's the same version Modrinth has.
How much RAM does a Lost World: The Broken Script server need?
| Players online | RAM | DSN plan |
|---|---|---|
| 1–3 players | About 4.5–5 GB | Premium (8 GB) |
| 4–8 players | About 5–6.5 GB | Premium (8 GB) |
| 9–15 players | About 6–8 GB | Premium (8 GB) |
Estimated from 130 mods on the server with our RAM calculator, not measured: low end if players stay together, high end if they spread out.
Set Java's heap (-Xmx) 10–15% under the RAM you have, about -Xmx7000M on 8 GB. NeoForge 1.21.1 reads it from user_jvm_args.txt: uncomment the -Xmx line. RAM guide.
Lost World: The Broken Script server requirements
| Java | Java 21 |
|---|---|
| Loader | NeoForge for Minecraft 1.21.1 |
| CPU | Fast single-core speed (one main thread). |
| RAM | About 4.5–8 GB for 1–15 players (table above) |
| Disk | The server files, a growing world and backups |
| Network | TCP port 25565 open to players |
Recommended plan
Our pick for Lost World: The Broken Script
Premium
8 GB RAM · planned launch price $30/month
At about 130 NeoForge mods this is a mid-size pack, and 8 GB gives it room for the mods plus the chunks your players load.
Ordering is closed until we relaunch. We aren't taking orders or payments while we move to new hardware. Join the launch list and we'll email you when Premium servers open.
More than 15 players, or lots exploring at once? Go up to Heavy (12 GB). Not sure? Email hello@dsnservers.com.
Planned launch price in USD, billed monthly once ordering opens, with a 7-day refund window.
How to make a Lost World: The Broken Script server on your own PC
What's specific to Lost World: The Broken Script, step by step. The full walkthrough for any pack: how to make a modded Minecraft server.
- Install Java 21.
Check with
java -version. Java version chart. - Get the server files.
Download the official server pack,
[3.6.0 - Server] Lost World - The Broken Script.zip, from CurseForge and unzip it into an empty folder. - Start it and accept the EULA.
Run the start script in the server files, or the
run.sh/run.batthe NeoForge 1.21.1 installer writes, then seteula=trueineula.txtif you accept Mojang's EULA (EULA step). - Set the RAM with
-Xmx, sized from the table above. - Let friends connect: forward TCP 25565, or use a tunnel or host behind CGNAT (can't connect?).
Or run Lost World: The Broken Script on DSN
Once we relaunch (join the launch list), on DSN you'd install Lost World: The Broken Script from the panel's Modrinth modpack installer (version 3.6.0), pick Java 21 on the Startup tab and accept the EULA in the console. No port forwarding.
How to play Lost World: The Broken Script with friends
Each player installs Lost World: The Broken Script version 3.6.0 with the Modrinth App or Prism Launcher, the same version as the server, and adds the server's address under Multiplayer.
Different versions of Lost World: The Broken Script on the server and a client show up as Mismatched mod channel list or mod rejections. Why friends can't join, timeouts included.
Lag and performance on Lost World: The Broken Script
Can't keep up! Is the server overloaded? means ticks take longer than 50 ms; more RAM won't fix that once Lost World: The Broken Script has enough (tick lag guide). For Lost World: The Broken Script:
- Measure first: spark's
/spark tpsand profiler work on 1.21.1 and name the mod or machine using the tick time. - Distances:
view-distance=8and a lowersimulation-distanceinserver.properties. - Pre-generate: Chunky for 1.21.1,
/chunky radius 3000then/chunky start, before people explore.
Common Lost World: The Broken Script crashes
What a NeoForge 1.21.1 server running Lost World: The Broken Script hits most. For any other error, paste the log into the free crash log analyzer.
- Wrong Java version. Lost World: The Broken Script on Minecraft 1.21.1 needs Java 21. Started on Java 17, it stops with
UnsupportedClassVersionError: ... class file version 65.0, this version of the Java Runtime only recognizes class file versions up to 61.0. Java version fix. - Out of memory. Lost World: The Broken Script (130 mods on the server) needs about 4.5–5 GB for 1–3 players;
java.lang.OutOfMemoryErrormeans it ran out. Out-of-memory fix. - Client-only mod on the server. The Lost World: The Broken Script pack file marks none of its mods client-only, so this usually means one was copied over from a player's mods folder. Check a mods list with the client-or-server-side checker. Client-only mod fix.
- After adding or updating a mod. Mods you add to Lost World: The Broken Script by hand usually crash it with a missing dependency or a mixin conflict.
- Ticking entity or block entity. The crash report names it and gives its coordinates. Ticking entity fix.
Updates and support
Before moving Lost World: The Broken Script past version 3.6.0, back up the world: see updating a modpack server without losing your world.
Bugs in Lost World: The Broken Script itself go to its authors: Discord. Server problems on DSN: hello@dsnservers.com or Discord.
Packs like Lost World: The Broken Script
More: NeoForge server hosting, all modpack guides and how to make a modded server.
Run Lost World: The Broken Script on DSN when we relaunch.
Our pick, Premium: 8 GB, planned at $30/month.
DSN Servers isn't affiliated with Lost World: The Broken Script or Modrinth. The pack's icon, summary and stats come from Modrinth's public API (checked October 4, 2026).