// modpack server guide

Shalz One Block Survival Create server hosting & setup guide

A Shalz One Block Survival Create server needs Java 17 and about 4–6 GB of RAM for up to 15 players.

Create Pack used by Shalz in his One block survival Create mod series.

Summary from Shalz One Block Survival Create on Modrinth.

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

Shalz One Block Survival Create is a Fabric modpack for Minecraft 1.20.1 with 91 mods. We'd pick our Premium plan (8 GB) for it.

Quick facts

Loader	Fabric
Minecraft versions	1.20.1
Java needed	Java 17 for Minecraft 1.20.1 Java version chart.
Mods	91 modsCounted from the pack's file list on Modrinth. None are marked client-only.
RAM	About 3–3.5 GB for 1–3 playersBy player count.
Downloads	217,667 on Modrinth
Last updated	April 4, 2026 (version 2.0.0)
First published	September 25, 2024 on Modrinth
Server support	Supported: it runs on a server, and works in single player too.
Server pack	Not published separatelyHow to build the server.
Modrinth tags	challenging, technology

Shalz One Block Survival Create server files

No. Shalz One Block Survival Create has no separate server pack on Modrinth, so the server is built from the .mrpack: the Fabric server for Minecraft 1.20.1, plus the pack's overrides folder and the server-side mods its modrinth.index.json lists. A modpack installer does this for you; our guide shows how to make a server for a modpack with no server pack.

How much RAM does a Shalz One Block Survival Create 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 91 mods on the server with our RAM calculator, not measured: low end if players stay together, high end if they spread out.

By this estimate Standard (4 GB) can run a small group. Our pick below, Premium, leaves room for more players and for the pack growing with updates.

Set Java's heap (-Xmx) 10–15% under the RAM you have, about -Xmx7000M on 8 GB. Fabric 1.20.1 takes it in the java command (-Xmx), usually in the start script. RAM guide.

Shalz One Block Survival Create server requirements

Java	Java 17
Loader	Fabric 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 Shalz One Block Survival Create

Premium

8 GB RAM · planned launch price $30/month

At about 91 Fabric 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.

Join the launch list Compare all plans

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 Shalz One Block Survival Create server on your own PC

What's specific to Shalz One Block Survival Create, 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.
Build them from the .mrpack, as in server files above.
Start it and accept the EULA.
Run the start script in the server files, or java -jar on the Fabric 1.20.1 server launcher, 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 Shalz One Block Survival Create on DSN

Once we relaunch (join the launch list), on DSN you'd install Shalz One Block Survival Create from the panel's Modrinth modpack installer (version 2.0.0), pick Java 17 on the Startup tab and accept the EULA in the console. No port forwarding.

How to play Shalz One Block Survival Create with friends

Each player installs Shalz One Block Survival Create version 2.0.0 with the Modrinth App or Prism Launcher, the same version as the server, and adds the server's address under Multiplayer.

Different versions of Shalz One Block Survival Create 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 Shalz One Block Survival Create

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

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.
Create contraptions and train networks tick in every loaded chunk; check them first when TPS drops.

Common Shalz One Block Survival Create crashes

What a Fabric 1.20.1 server running Shalz One Block Survival Create hits most. For any other error, paste the log into the free crash log analyzer.

Wrong Java version. Shalz One Block Survival Create 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. Shalz One Block Survival Create (91 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. The Shalz One Block Survival Create 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 Shalz One Block Survival Create 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 Shalz One Block Survival Create past version 2.0.0, back up the world: see updating a modpack server without losing your world.

Bugs in Shalz One Block Survival Create itself go to its authors through its Modrinth page. Server problems on DSN: hello@dsnservers.com or Discord.

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

Run Shalz One Block Survival Create on DSN when we relaunch.

Our pick, Premium: 8 GB, planned at $30/month.

Join the launch list

DSN Servers isn't affiliated with Shalz One Block Survival Create or Modrinth. The pack's name, icon, summary and stats come from Modrinth's public API (checked October 4, 2026).