// modpack server guide

Jurassic World Rebirth server hosting & setup guide

A Jurassic World Rebirth server needs Java 17 and about 3–3.5 GB of RAM for up to 3 players.

Time to join the past with the present, enjoy a world filled with these dinosaurs!

Summary from Jurassic World Rebirth on Modrinth.

By DSN Servers · Updated October 2026 · Forge · Minecraft 1.20.1 · Java Edition

Jurassic World Rebirth is a Forge modpack for Minecraft 1.20.1 (older versions go back to 1.12.2) with 98 mods, 77 of which run on the server. We'd pick our Standard plan (4 GB) for it.

Quick facts

Loader	Forge
Minecraft versions	1.20.1, 1.18.2, 1.12.2
Java needed	Java 17 for Minecraft 1.20.1Older pack versions: Java 8 for 1.12.2. Java version chart.
Mods	77 run on the server98 in the pack. The other 21 are client-only, and the server skips them.
RAM	About 3–3.5 GB for 1–3 playersBy player count.
Downloads	118,982 on Modrinth
Last updated	October 3, 2026 (version 3.1.4)
First published	January 16, 2024 on Modrinth
Server support	Required: the pack has mods that must run on the server.
Server pack	JurassicWorldRebirth+Server-[3.1.4].zipOfficial server pack on CurseForge, for JurassicWorldRebirth-[3.1.4], the same version Modrinth has. Checked October 5, 2026.
Modrinth tags	adventure, challenging, technology

Jurassic World Rebirth server files

Yes, on CurseForge. Modrinth has no separate server pack for Jurassic World Rebirth, but the authors publish one on CurseForge: JurassicWorldRebirth+Server-[3.1.4].zip, for JurassicWorldRebirth-[3.1.4] (October 3, 2026). That's the same version Modrinth has.

How much RAM does a Jurassic World Rebirth server need?

Players online	RAM	DSN plan
1–3 players	About 3–3.5 GB	Standard (4 GB)
4–8 players	About 3.5–4.5 GB	Premium (8 GB)Standard (4 GB) can do if players stay close.
9–15 players	About 4–6 GB	Premium (8 GB)Standard (4 GB) can do if players stay close.

Estimated from 77 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 -Xmx3500M on 4 GB. Forge 1.20.1 reads it from user_jvm_args.txt: uncomment the -Xmx line. RAM guide.

Jurassic World Rebirth server requirements

Java	Java 17
Loader	Forge for Minecraft 1.20.1
CPU	Fast single-core speed (one main thread).
RAM	About 3–6 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 Jurassic World Rebirth

Standard

4 GB RAM · planned launch price $16/month

At about 77 Forge mods this is a light pack, so 4 GB of RAM covers it for a small group.

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 Standard servers open.

Join the launch list Compare all plans

More than 3 players, or lots exploring at once? Go up to Premium (8 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 Jurassic World Rebirth server on your own PC

What's specific to Jurassic World Rebirth, step by step. The full walkthrough for any pack: how to make a modded Minecraft server.

Install Java 17.
Check with java -version. Java version chart.
Get the server files.
Download the official server pack, JurassicWorldRebirth+Server-[3.1.4].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.bat the Forge 1.20.1 installer writes, then set eula=true in eula.txt if 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 Jurassic World Rebirth on DSN

Once we relaunch (join the launch list), on DSN you'd install Jurassic World Rebirth from the panel's Modrinth modpack installer (version 3.1.4), pick Java 17 on the Startup tab and accept the EULA in the console. No port forwarding.

How to play Jurassic World Rebirth with friends

Each player installs Jurassic World Rebirth version 3.1.4 with the Modrinth App or Prism Launcher, the same version as the server, and adds the server's address under Multiplayer.

Different versions of Jurassic World Rebirth 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 Jurassic World Rebirth

Can't keep up! Is the server overloaded? means ticks take longer than 50 ms; more RAM won't fix that once Jurassic World Rebirth has enough (tick lag guide). For Jurassic World Rebirth:

Measure first: spark's /spark tps and profiler work on 1.20.1 and name the mod or machine using the tick time.
Distances: view-distance=8 and a lower simulation-distance in server.properties.
Pre-generate: Chunky for 1.20.1, /chunky radius 3000 then /chunky start, before people explore.

Common Jurassic World Rebirth crashes

What a Forge 1.20.1 server running Jurassic World Rebirth hits most. For any other error, paste the log into the free crash log analyzer.

Wrong Java version. Jurassic World Rebirth on Minecraft 1.20.1 needs Java 17. Started on Java 8, it stops with UnsupportedClassVersionError: ... class file version 61.0, this version of the Java Runtime only recognizes class file versions up to 52.0. Java version fix.
Out of memory. Jurassic World Rebirth (77 mods on the server) needs about 3–3.5 GB for 1–3 players; java.lang.OutOfMemoryError means it ran out. Out-of-memory fix.
Client-only mod on the server. Jurassic World Rebirth includes 21 client-only mods, which a server install skips; copying a player's mods folder brings them back and stops the server. 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 Jurassic World Rebirth 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 Jurassic World Rebirth past version 3.1.4, back up the world: see updating a modpack server without losing your world.

Bugs in Jurassic World Rebirth itself go to its authors: Discord. Server problems on DSN: hello@dsnservers.com or Discord.

More: all modpack guides and how to make a modded server.

Run Jurassic World Rebirth on DSN when we relaunch.

Our pick, Standard: 4 GB, planned at $16/month.

Join the launch list

DSN Servers isn't affiliated with Jurassic World Rebirth or Modrinth. The pack's name, icon, summary and stats come from Modrinth's public API (checked October 4, 2026).