ATM10 memory needs are highly workload-dependent.
Quick answer: Start with 10 GB base, add player overhead, then add automation/chunk-loading headroom. Most active groups land between 12 and 18 GB.
Simple formula
Use this starting estimate:
Estimated RAM = 10 GB base + (players x 0.35 GB) + automation buffer
Automation buffer guide:
- light automation: +1 GB
- medium automation: +2 to 3 GB
- heavy automation/chunk loaders: +4 to 6 GB
Examples
| Scenario | RAM target |
|---|---|
| 3 players, light automation | 12 GB |
| 8 players, medium automation | 15 GB |
| 12 players, heavy automation | 18 to 20 GB |
Why servers still lag with "enough" RAM
RAM is only one part.
- CPU single-core performance matters for tick stability.
- Storage latency matters for chunk and save operations.
- Bad JVM flags can still create stutter.
Use this with ATM10 server requirements, ATM10 JVM arguments, and ATM10 lag fixes.
Allocation guidance
Do not allocate all host memory to Java.
Leave memory for:
- OS and filesystem cache,
- panel/agent processes,
- monitoring and backups.
FAQ
Is 8 GB enough for ATM10?
Usually only for very small and short sessions. Expect instability as worlds progress.
Is 16 GB enough for ATM10?
For many active groups yes, if CPU/storage are strong and automation is controlled.
Can 24 GB be needed?
Yes, for larger player counts with heavy automation and many loaded chunks.
