// modpack server guide

Conquest Reforged server hosting & setup guide

A Conquest Reforged server needs Java 17 and about 2.5–4 GB of RAM for up to 15 players.

The official Conquest Reforged modpack, for Fabric!

Summary from Conquest Reforged Modpack (Fabric) on Modrinth.

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

Conquest Reforged Modpack (Fabric) is a Fabric modpack for Minecraft 1.20.1 (older versions go back to 1.19.2) with 32 mods. We'd pick our Standard plan (4 GB) for it.

Quick facts

Loader	Fabric
Minecraft versions	1.20.1, 1.19.2
Java needed	Java 17 for Minecraft 1.20.1 Java version chart.
Mods	32 modsCounted from the pack's file list on Modrinth. None are marked client-only.
RAM	About 2–2.5 GB for 1–3 playersBy player count.
Downloads	337,543 on Modrinth
Last updated	August 21, 2026 (version 1.7.0)
First published	February 28, 2023 on Modrinth
Server support	Required: the pack has mods that must run on the server.
Server pack	Not published separatelyHow to build the server.
Modrinth tags	adventure, challenging, combat

Conquest Reforged server files

No. Conquest Reforged has no separate server pack on Modrinth or CurseForge (we checked CurseForge on October 5, 2026), 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 Conquest Reforged server need?

Players online	RAM	DSN plan
1–3 players	About 2–2.5 GB	Standard (4 GB)
4–8 players	About 2–3 GB	Standard (4 GB)
9–15 players	About 2.5–4 GB	Standard (4 GB)

Estimated from 32 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. Fabric 1.20.1 takes it in the java command (-Xmx), usually in the start script. RAM guide.

Conquest Reforged server requirements

Java	Java 17
Loader	Fabric for Minecraft 1.20.1
CPU	Fast single-core speed (one main thread).
RAM	About 2–4 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 Conquest Reforged

Standard

4 GB RAM · planned launch price $16/month

At about 32 Fabric 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 15 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 Conquest Reforged server on your own PC

What's specific to Conquest Reforged, 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 Conquest Reforged on DSN

Once we relaunch (join the launch list), on DSN you'd install Conquest Reforged from the panel's Modrinth modpack installer (version 1.7.0), pick Java 17 on the Startup tab and accept the EULA in the console. No port forwarding.

How to play Conquest Reforged with friends

Each player installs Conquest Reforged version 1.7.0 with the Modrinth App or Prism Launcher, the same version as the server, and adds the server's address under Multiplayer.

Different versions of Conquest Reforged 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 Conquest Reforged

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

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 Conquest Reforged crashes

What a Fabric 1.20.1 server running Conquest Reforged hits most. For any other error, paste the log into the free crash log analyzer.

Wrong Java version. Conquest Reforged 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. Conquest Reforged (32 mods on the server) needs about 2–2.5 GB for 1–3 players; java.lang.OutOfMemoryError means it ran out. Out-of-memory fix.
Client-only mod on the server. The Conquest Reforged 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 Conquest Reforged 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 Conquest Reforged past version 1.7.0, back up the world: see updating a modpack server without losing your world.

Bugs in Conquest Reforged itself go to its authors: issue tracker and Discord. Server problems on DSN: hello@dsnservers.com or Discord.

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

Run Conquest Reforged on DSN when we relaunch.

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

Join the launch list

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