How to Fix an ARK: Survival Evolved Server That Keeps Crashing
ARK server crashes are usually one of a handful of known causes — a memory leak over long uptime, an autosave spike, too many tamed dinos, heavy mods, or a BattlEye conflict. Here's how to diagnose and fix each one.
Memory leak over long uptime
ARK's server code doesn't always clear unused data quickly, so memory usage creeps upward the longer the server stays online without a restart — eventually crashing once it exhausts available RAM. Fix: schedule a daily restart to reset the server to a clean memory state rather than waiting for it to crash on its own.
Autosave memory spike on an already-full server
ARK saves the entire world state periodically, and serializing everything in memory during that save causes a temporary spike — if the server is already close to its RAM ceiling, the spike itself is what crashes it. Fix: keep real headroom above your steady-state usage, not just enough to cover normal play between saves.
Too many tamed dinos and structures
Tamed dino count and structure density drive RAM usage far more than player count does — a packed base with dozens of un-cryopodded dinos can push a server past its limit even with few players online. Fix: cryopod dinos you're not actively using and consider lowering MaxTamedDinos in GameUserSettings.ini.
Heavy mod overhead
Each content mod can add real memory overhead on top of the base game, and a pack of 10+ mods noticeably increases both startup time and steady-state RAM usage. Fix: audit your mod list and drop anything not actively used by the tribe — heavier content mods are the usual culprits.
BattlEye conflicting with something else on the host
BattlEye crashes are often not caused by BattlEye in isolation, but by a conflict with an overlay, VPN, antivirus tool, or corrupted files on the machine. Fix: if you don't need public-server anti-cheat, running with -NoBattlEye removes this entire class of crash for a private tribe.
Corrupted save from a bad shutdown
Because ARK saves continuously rather than on a clean fixed interval, killing the process instead of a graceful SIGTERM can catch a save mid-write and corrupt it. Fix: always stop the server gracefully and give it time to finish writing before a reboot or migration.
FAQ
Why does my ARK server get slower and eventually crash the longer it runs?+
Does player count or tamed dino count matter more for RAM?+
Should I disable BattlEye to stop crashes?+
Run ARK without babysitting the memory leak
CoalHost sizes RAM with real autosave and tamed-dino headroom, not just a bare player-count minimum.
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