// modpack server guide
Vanilla Perfected server hosting & setup guide
A Vanilla Perfected server needs Java 25 and about 3.5–5.5 GB of RAM for up to 15 players.
A compilation of Vanilla Plus mods & packs to perfect the Minecraft experience without drifting too far from the feel of the base game!
Summary from Vanilla Perfected on Modrinth.
Vanilla Perfected is a Fabric modpack for Minecraft 26.2 (older versions go back to 1.20.1) with 81 mods. We'd pick our Premium plan (8 GB) for it.
Quick facts
| Loader | Fabric |
|---|---|
| Minecraft versions | 26.2, 26.1.2, 1.21.11, 1.21.10, 1.21.8and 6 older (back to 1.20.1)1.21.6, 1.21.5, 1.21.4, 1.21.1, 1.21, 1.20.1 |
| Java needed | Java 25 for Minecraft 26.2Older pack versions: Java 21 for 1.21.11, 1.21.10, 1.21.8 and older; Java 17 for 1.20.1. Java version chart. |
| Mods | 81 modsCounted from the pack's file list on Modrinth. None are marked client-only. |
| RAM | About 2.5–3 GB for 1–3 playersBy player count. |
| Downloads | 2,550,642 on Modrinth |
| Last updated | July 24, 2026 (version 1.0.3+26.2) |
| First published | October 2, 2024 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, lightweight, optimization |
Vanilla Perfected server files
No. Vanilla Perfected 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 26.2, 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 Vanilla Perfected server need?
| Players online | RAM | DSN plan |
|---|---|---|
| 1–3 players | About 2.5–3 GB | Standard (4 GB) |
| 4–8 players | About 3–4 GB | Standard (4 GB) |
| 9–15 players | About 3.5–5.5 GB | Premium (8 GB)Standard (4 GB) can do if players stay close. |
Estimated from 81 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 26.2 takes it in the java command (-Xmx), usually in the start script. RAM guide.
Vanilla Perfected server requirements
| Java | Java 25 |
|---|---|
| Loader | Fabric for Minecraft 26.2 |
| CPU | Fast single-core speed (one main thread). |
| RAM | About 2.5–5.5 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 Vanilla Perfected
Premium
8 GB RAM · planned launch price $30/month
At about 81 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.
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 Vanilla Perfected server on your own PC
What's specific to Vanilla Perfected, step by step. The full walkthrough for any pack: how to make a modded Minecraft server.
- Install Java 25.
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 -jaron the Fabric 26.2 server launcher, then seteula=trueineula.txtif 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 Vanilla Perfected on DSN
Once we relaunch (join the launch list), on DSN you'd install Vanilla Perfected from the panel's Modrinth modpack installer (version 1.0.3+26.2), pick Java 25 on the Startup tab and accept the EULA in the console. No port forwarding.
How to play Vanilla Perfected with friends
Each player installs Vanilla Perfected version 1.0.3+26.2 with the Modrinth App or Prism Launcher, the same version as the server, and adds the server's address under Multiplayer.
Different versions of Vanilla Perfected 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 Vanilla Perfected
Can't keep up! Is the server overloaded? means ticks take longer than 50 ms; more RAM won't fix that once Vanilla Perfected has enough (tick lag guide). For Vanilla Perfected:
- Measure first: spark's
/spark tpsand profiler work on 26.2 and name the mod or machine using the tick time. - Distances:
view-distance=8and a lowersimulation-distanceinserver.properties. - Pre-generate: Chunky for 26.2,
/chunky radius 3000then/chunky start, before people explore.
Common Vanilla Perfected crashes
What a Fabric 26.2 server running Vanilla Perfected hits most. For any other error, paste the log into the free crash log analyzer.
- Wrong Java version. Vanilla Perfected on Minecraft 26.2 needs Java 25. Started on Java 21, it stops with
UnsupportedClassVersionError: ... class file version 69.0, this version of the Java Runtime only recognizes class file versions up to 65.0. Java version fix. - Out of memory. Vanilla Perfected (81 mods on the server) needs about 2.5–3 GB for 1–3 players;
java.lang.OutOfMemoryErrormeans it ran out. Out-of-memory fix. - Client-only mod on the server. The Vanilla Perfected 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 Vanilla Perfected 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 Vanilla Perfected past version 1.0.3+26.2, back up the world: see updating a modpack server without losing your world.
Bugs in Vanilla Perfected itself go to its authors through its Modrinth page. Server problems on DSN: hello@dsnservers.com or Discord.
Packs like Vanilla Perfected
More: all modpack guides and how to make a modded server.
Run Vanilla Perfected on DSN when we relaunch.
Our pick, Premium: 8 GB, planned at $30/month.
DSN Servers isn't affiliated with Vanilla Perfected or Modrinth. The pack's name, icon, summary and stats come from Modrinth's public API (checked October 4, 2026).