How much RAM does a Minecraft server need?
Updated September 2026 · The short answer: 2 GB for a few friends, 8 GB for a big modpack, 16 GB for a community. Here is the detail.
The short answer
For a Java server, RAM is mostly about the world size and the number of loaded chunks — not the number of players as much as people think. Single-thread CPU speed matters more for ticks; RAM matters for keeping chunks and entities in memory.
- 2–4 GB — vanilla with 2–10 friends, no heavy plugins.
- 6–8 GB — vanilla plus plugins, 20–60 players, or a medium modpack.
- 10–16 GB — large modpacks (All the Mods, RLCraft), 100+ players or big farms.
- 16 GB+ — communities, networks (BungeeCord/Velocity) or many worlds at once.
Modpacks need more than vanilla
A heavy pack like All the Mods 10 loads thousands of items and recipes. Plan 6 GB minimum, realistically 8–12 GB for 3–5 players. Our configurator already knows this: pick the modpack preset and it sets the number for you.
When is RAM not the problem?
If you see lag spikes with low memory usage, the cause is usually CPU single-thread speed, slow storage or too many entities in one chunk. Minecraft runs your world on one main thread — that is why single-thread CPU speed and fast storage matter more than core count. Every ShulkerHost plan runs on NVMe storage.
How to change it later
You can upgrade your memory in one click from the panel at any time. The price adjusts with your next billing cycle and your world stays exactly where it is — no migration, no downtime.