How to Fix a Beyond Depth Server That Keeps Crashing
Beyond Depth's most-reported crash isn't a startup failure — it's a delayed garbage-collector crash that shows up roughly an hour into a session, once enough has generated and accumulated in memory to run out of room.
See the Beyond Depth pack page for sizing before you chase anything else.
1. The delayed GC crash, not a startup crash
If the server boots fine and runs cleanly at first, then crashes roughly an hour into a session, this is the pack's characteristic failure mode: the garbage collector runs out of room to reclaim memory as the world and loaded objects accumulate. Treat it as a RAM problem even though nothing looks wrong at launch.
The fix is the same as any RAM-pressure crash — raise the allocation — but the delayed timing is worth recognizing so you don't waste time debugging mods instead.
2. Lag from on-demand chunk generation
With 400+ mods, custom dimensions and enhanced world-gen, generating new chunks while players actively explore is expensive and shows up as lag spikes. Running a chunk pre-generation pass before opening the server to players removes most of this cost from normal play.
3. RAM below 8-10 GB
8 GB is the commonly cited minimum; 10 GB is the more realistic recommendation given the pack's scope. This directly feeds into cause #1 above — more headroom means the GC crash shows up later, if at all.
FAQ
Why does my Beyond Depth server crash about an hour in, not right away?+
This is the pack's most reported pattern: the server runs fine at first, then crashes once the garbage collector runs out of room to reclaim memory — not an immediate startup failure. It's a RAM problem that only shows up once enough world has generated and enough objects have accumulated.
What's the single biggest fix for lag spikes on Beyond Depth?+
Running a chunk pre-generation pass before players start exploring. Generating new chunks on demand while people explore is expensive with 400+ mods and custom dimensions — pre-generating removes that cost from normal play.
How much RAM does Beyond Depth actually need?+
8 GB is commonly cited as the minimum, with 10 GB as the realistic recommendation given the pack's custom dimensions, enhanced world-gen and boss encounters.
Host Beyond Depth with the RAM headroom it needs an hour in
CoalHost sizes Beyond Depth at 8-10 GB from the first boot, so the delayed GC crash isn't a surprise an hour into your first session.
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