Demo deck
Your Cosmos deck
Cosmos 1.21.x Cosmos 26.x
2/3Online
90Players
2/3IP slots
7d agoLast build
Live · checked just now
Server monitor
Started with the loader 2
- #A41F09Minecraft 26.2Linux amd64 · Java 25 · 51.89.x.xLatest build3h ago41 starts
- #7C2D11Minecraft 1.21.11Windows Server 2022 amd64 · Java 21 · 185.24.x.xUpdate on restart1d ago12 starts
License
Your key
License keyActive
•••••-•••••-•••••-•••••-••••• 1.21.x 26.x
IP slots2 of 3 used
51.89.x.x🇫🇷 FR185.24.x.x🇩🇪 DE
Downloads
Builds
The loader picks the build for your Minecraft version and keeps it updated. Direct jars never update themselves.
Launch
Start script
Minecraft
#!/bin/bash
MAX_RAM="${MAX_RAM:-6G}"
export MALLOC_ARENA_MAX=2
exec java -Xms512M -Xmx"$MAX_RAM" \
-XX:+UseG1GC \
-XX:+UseCompactObjectHeaders \
-XX:+UseTransparentHugePages \
-XX:+UseStringDeduplication \
-XX:G1PeriodicGCInterval=10000 \
-XX:MinHeapFreeRatio=10 \
-XX:MaxHeapFreeRatio=25 \
-XX:+ParallelRefProcEnabled \
-XX:MaxGCPauseMillis=130 \
-jar CosmosLoader.jar --nogui
Needs Java 25. Run chmod +x start.sh once.
OrdersCosmos 1.21.x$50 · PayPal · Nov 5PaidCosmos 26.x$50 · Card · Oct 28Paid