Guide

    Host a Minecraft server for free on Oracle Cloud

    Oracle Cloud's Always Free tier gives you 2 ARM Ampere cores and 12 GB of RAM — more than enough to run a smooth Paper or Fabric Minecraft server for 20+ friends, forever, at $0/month. Here's the full setup.

    Why Oracle Cloud beats every other free host for Minecraft

    • 2 ARM Ampere cores + 12 GB RAM — free forever. Aternos gives you 1 GB and queues you.
    • 200 GB block storage — plenty for large worlds and backups.
    • 10 TB/month egress — bandwidth is never the bottleneck.
    • Your own IP and full root access — install any mod, any plugin, any Java version.

    Step 1 — Provision the ARM instance

    Sign up for Oracle Cloud (signup guide), then launch an Ampere A1.Flex shape with 2 OCPUs and 12 GB RAM. Pick Ubuntu 22.04 as the image. Hitting "Out of host capacity"? Use our retry script.

    Step 2 — Open the Minecraft port

    Two places to open TCP 25565: the VCN Security List in the Oracle Cloud console, and the instance's local iptables:

    sudo iptables -I INPUT 6 -m state --state NEW -p tcp --dport 25565 -j ACCEPT
    sudo netfilter-persistent save

    Step 3 — Install Java 21 (ARM-native)

    sudo apt update
    sudo apt install -y openjdk-21-jre-headless screen
    java -version   # confirm aarch64 build

    Step 4 — Install Paper

    Paper is a high-performance Spigot fork. Grab the latest 1.21.x build:

    mkdir -p /opt/minecraft && cd /opt/minecraft
    curl -o paper.jar https://api.papermc.io/v2/projects/paper/versions/1.21.4/builds/latest/downloads/paper-1.21.4-latest.jar
    echo "eula=true" > eula.txt

    Step 5 — Launch with tuned JVM flags

    Allocate 16 GB to the heap (leave headroom for the OS) and use Aikar's flags for smoother GC on Ampere:

    screen -S mc
    java -Xms16G -Xmx16G \
      -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 \
      -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC \
      -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 \
      -jar paper.jar nogui

    Detach with Ctrl-A D. Connect from your Minecraft client using the instance's public IP.

    Step 6 — Auto-restart with systemd

    # /etc/systemd/system/minecraft.service
    [Unit]
    Description=Paper Minecraft
    After=network.target
    
    [Service]
    WorkingDirectory=/opt/minecraft
    ExecStart=/usr/bin/java -Xms16G -Xmx16G -jar paper.jar nogui
    Restart=always
    User=minecraft
    
    [Install]
    WantedBy=multi-user.target

    sudo systemctl enable --now minecraft and you're done.

    Backups to Oracle Object Storage (also free)

    Add a nightly cron: tar czf /tmp/world.tgz /opt/minecraft/world && oci os object put --bucket-name mc-backups --file /tmp/world.tgz. Object Storage gives you 10 GB always free — plenty for weekly snapshots.

    Prefer to skip the Linux chores?

    Cheaploy automates the whole Oracle provisioning + Docker + systemd step for web apps. Minecraft itself still needs a manual server jar, but the underlying compute setup is the same — and if you use Cheaploy for your web dashboard on the same tenancy, you'll never touch a VCN by hand again.

    Frequently asked

    How many players can a free Oracle Cloud Minecraft server handle?+

    With Paper and 12 GB of RAM allocated to the JVM, 15-25 concurrent players is comfortable for vanilla-style gameplay. Heavy modpacks (RLCraft, All The Mods) support fewer — plan for 5-8.

    Is Java or Bedrock better on Oracle Cloud ARM?+

    Java (via Paper or Fabric) is the mature path — ARM-native OpenJDK 21 is fast and stable. Bedrock server binaries are x86-only, so you'd need emulation and take a big performance hit.

    Will Oracle shut down my server for being 'idle' or 'not production'?+

    Oracle reclaims Always Free instances only after ~7 days of very low CPU and network. A live Minecraft server, even with 0 players, generates enough activity to stay running indefinitely.

    How do I keep the world backed up?+

    Add a nightly cron job that tars /opt/minecraft/world and uploads to Oracle Object Storage (10 GB always free). One-line rclone or oci-cli command.

    Deploy your project for $0

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