// modpack server guide
Craftoria server hosting & setup guide
A Craftoria server needs Java 21 and about 10–11 GB of RAM for up to 3 players.
A big NeoForge 1.21.1 pack mixing tech, magic, exploration and building, with over 500 mods, more than 2,000 quests, seasons and a handcrafted endgame.
Pack details checked by hand against Craftoria on CurseForge on October 5, 2026.
Craftoria is a NeoForge modpack for Minecraft 1.21.1 with 522 mods. We'd pick our Heavy plan (12 GB) for it.
- Craftoria's server files hold no mods: Craftoria-Server-1.37.0.zip is under 8 KB. The README for them, kept in the pack's GitHub repository, says the start script (startserver.sh or startserver.bat) downloads everything the server needs on its first run, and that the server needs Java 21 or Java 25. A server set up from these files by hand has to run that script once before it has the pack's mods.
Quick facts
| Loader | NeoForge |
|---|---|
| Minecraft versions | 1.21.1 |
| Java needed | Java 21 for Minecraft 1.21.1 Java version chart. |
| Mods | 522 modsThe number of mods CurseForge lists for the pack, client-side ones included; the authors say 500+. |
| RAM | About 10–11 GB for 1–3 playersBy player count. |
| Downloads | 2,831,734 on CurseForgeAs of October 5, 2026. |
| Latest version | September 13, 2026 (version 1.37.0)The newest version when we checked on October 5, 2026. |
| Official server files | Download pagePublished next to most versions on CurseForge, for example Craftoria-Server-1.37.0.zip for version 1.37.0. |
| Where to get it | Craftoria on CurseForge |
| Tags | exploration, extra large, quests, magic, tech |
Craftoria server files
Craftoria's authors publish official server files. Published next to most versions on CurseForge, for example Craftoria-Server-1.37.0.zip for version 1.37.0. Get the official server files.
Use the server files for the exact version your players install: a server and client on different pack versions won't connect.
How much RAM does a Craftoria server need?
| Players online | RAM | DSN plan |
|---|---|---|
| 1–3 players | About 10–11 GB | Heavy (12 GB) |
| 4–8 players | About 11–13 GB | Heavy (12 GB) if players stay closeMore than 12 GB if they spread out. |
| 9–15 players | About 12.5–16.5 GB | More than 12 GBBigger than our biggest plan. |
Estimated from 522 mods with our RAM calculator, not measured: low end if players stay together, high end if they spread out.
With 9–15 players, Craftoria can need more than 12 GB, which is more than our biggest plan. A lower view distance and a pre-generated world help it fit; past that, a host with bigger plans is the better choice.
Set Java's heap (-Xmx) 10–15% under the RAM you have, about -Xmx10500M on 12 GB. NeoForge 1.21.1 reads it from user_jvm_args.txt: uncomment the -Xmx line. RAM guide.
Craftoria server requirements
| Java | Java 21 |
|---|---|
| Loader | NeoForge for Minecraft 1.21.1 |
| CPU | Fast single-core speed (one main thread). With 522 mods, the first start takes minutes. |
| RAM | About 10–16.5 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 Craftoria
Heavy
12 GB RAM · planned launch price $42/month
With 522 mods on CurseForge's list this is one of the biggest packs you can run, and 12 GB keeps it clear of out-of-memory crashes.
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 Heavy servers open.
Heavy is our biggest plan. 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 Craftoria server on your own PC
What's specific to Craftoria, 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 files for the version your players use and unzip them into an empty folder. Follow the readme that comes with them.
- 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). With 522 mods, the first start takes minutes. - 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 Craftoria on DSN
Once we relaunch (join the launch list), on DSN you'd install Craftoria from the panel's CurseForge modpack installer, pick Java 21 on the Startup tab and accept the EULA in the console. No port forwarding. We haven't tested the panel's installer with this pack: its server files hold only a start script that downloads the mods on first run. If the server starts without the pack's mods, upload the server files and run startserver.sh once.
How to play Craftoria with friends
Each player installs Craftoria with the CurseForge app or Prism Launcher, the same version as the server, and adds the server's address under Multiplayer.
Different versions of Craftoria 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 Craftoria
Can't keep up! Is the server overloaded? means ticks take longer than 50 ms; more RAM won't fix that once Craftoria has enough (tick lag guide). For Craftoria:
- 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. - Chunk loaders keep machines running with nobody nearby; in a pack this size, dozens add up.
Common Craftoria crashes
What a NeoForge 1.21.1 server running Craftoria hits most. For any other error, paste the log into the free crash log analyzer.
- Out of memory. Craftoria (522 mods) needs about 10–11 GB for 1–3 players;
java.lang.OutOfMemoryErrormeans it ran out. Out-of-memory fix. - Wrong Java version. Craftoria 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. - Client-only mod on the server. This one shows up when the mods folder is copied from a player's game instead of installed as a 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 Craftoria 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 Craftoria past version 1.37.0, back up the world: see updating a modpack server without losing your world.
Bugs in Craftoria itself go to its authors: issue tracker. Server problems on DSN: hello@dsnservers.com or Discord.
Packs like Craftoria
More: NeoForge server hosting, all modpack guides and how to make a modded server.
Run Craftoria on DSN when we relaunch.
Our pick, Heavy: 12 GB, planned at $42/month.
DSN Servers isn't affiliated with Craftoria or CurseForge. We wrote the summary and checked the pack's facts by hand on October 5, 2026. Sources: curseforge.com, curseforge.com (2), curseforge.com (3), curseforge.com (4), api.cfwidget.com, github.com.