// modpack server guide

All of Create Aeronautics server hosting & setup guide

An All of Create Aeronautics server needs Java 21 and about 7–7.5 GB of RAM for up to 3 players.

A Create pack on NeoForge 1.21.1 built around Create Aeronautics, the mod for building anything from airships to planes and cars, with more than 50 addons and quests.

Pack details checked by hand against All of Create Aeronautics on CurseForge on October 5, 2026.

By DSN Servers · Updated October 2026 · NeoForge · Minecraft 1.21.1 · Java Edition

All of Create Aeronautics is a NeoForge modpack for Minecraft 1.21.1 with 217 mods. We'd pick our Premium plan (8 GB) for it.

Good to know

The authors ask players to report bugs in Create Aeronautics, or in Sable, the library it runs on, to those mods' own developers, and problems with the pack itself on the pack's Discord or GitHub.
See also: All the Mods 10 Aeronautics server guide.

Quick facts

Loader	NeoForge
Minecraft versions	1.21.1
Java needed	Java 21 for Minecraft 1.21.1 Java version chart.
Mods	217 modsThe number of mods CurseForge lists for the pack, client-side ones included.
RAM	About 7–7.5 GB for 1–3 playersBy player count.
Downloads	805,369 on CurseForgeAs of October 5, 2026.
Latest version	October 2, 2026 (version 2.7)The newest version when we checked on October 5, 2026.
Official server files	Download pagePublished next to each version on CurseForge, for example All_of_Create_-_Aeronautics_v2.7_serverpack.zip for version 2.7.
Where to get it	All of Create Aeronautics on CurseForge
Tags	small / light, tech, vanilla+, quests

All of Create Aeronautics server files

All of Create Aeronautics's authors publish official server files. Published next to each version on CurseForge, for example All_of_Create_-_Aeronautics_v2.7_serverpack.zip for version 2.7. 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 an All of Create Aeronautics server need?

Players online	RAM	DSN plan
1–3 players	About 7–7.5 GB	Premium (8 GB)
4–8 players	About 7.5–9.5 GB	Heavy (12 GB)Premium (8 GB) can do if players stay close.
9–15 players	About 9–11.5 GB	Heavy (12 GB)

Estimated from 217 mods 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.

All of Create Aeronautics server requirements

Java	Java 21
Loader	NeoForge for Minecraft 1.21.1
CPU	Fast single-core speed (one main thread). With 217 mods, the first start takes minutes.
RAM	About 7–11.5 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 All of Create Aeronautics

Premium

8 GB RAM · planned launch price $30/month

The authors don't publish RAM advice, and CurseForge lists 217 mods for the pack, client-side ones included, so 8 GB suits 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 Premium servers open.

Join the launch list Compare all plans

Running it for a bigger group or a public server? Go up to Heavy (12 GB, $42/month). 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 an All of Create Aeronautics server on your own PC

What's specific to All of Create Aeronautics, 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.bat the NeoForge 1.21.1 installer writes, then set eula=true in eula.txt if you accept Mojang's EULA (EULA step). With 217 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 All of Create Aeronautics on DSN

Once we relaunch (join the launch list), on DSN you'd install All of Create Aeronautics from the panel's CurseForge modpack installer, pick Java 21 on the Startup tab and accept the EULA in the console. No port forwarding.

How to play All of Create Aeronautics with friends

Each player installs All of Create Aeronautics with the CurseForge app or Prism Launcher, the same version as the server, and adds the server's address under Multiplayer.

Different versions of All of Create Aeronautics 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 All of Create Aeronautics

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

Measure first: spark's /spark tps and profiler work on 1.21.1 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 1.21.1, /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 All of Create Aeronautics crashes

What a NeoForge 1.21.1 server running All of Create Aeronautics hits most. For any other error, paste the log into the free crash log analyzer.

Wrong Java version. All of Create Aeronautics 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. All of Create Aeronautics (217 mods) needs about 7–7.5 GB for 1–3 players; java.lang.OutOfMemoryError means it ran out. Out-of-memory 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 All of Create Aeronautics 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 All of Create Aeronautics past version 2.7, back up the world: see updating a modpack server without losing your world.

Bugs in All of Create Aeronautics itself go to its authors: issue tracker. Server problems on DSN: hello@dsnservers.com or Discord.

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

Run All of Create Aeronautics on DSN when we relaunch.

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

Join the launch list

DSN Servers isn't affiliated with All of Create Aeronautics 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, curseforge.com (5), github.com.