ARK Dedicated Server Hosting in 2026: Specs, Tuning, and ASE vs ASA

ARK has two very different server workloads in 2026: Survival Evolved (ASE), the Unreal Engine 4 original, and Survival Ascended (ASA), the Unreal Engine 5 remake. ASA uses dramatically more RAM and CPU, and hosting both on the same box is asking for trouble. This guide covers the hardware you need for each, sizing tables by player count, and the launch flags and settings that keep an ARK server stable for months.

ASE vs ASA: how the workloads differ

ASA moved to UE5 with Nanite and Lumen, and the server-side cost is real: an ASA server commonly idles at 8–12 GB of RAM before any players connect, where ASE idles at 3–5 GB. ASA also spawns more aggressive background threads, which rewards more cores. If you are choosing hardware for a new cluster, size for ASA even if you currently run ASE.

Metric	ASE (UE4)	ASA (UE5)
Idle RAM (empty server)	3–5 GB	8–12 GB
RAM per active player	~150–250 MB	~300–500 MB
CPU cores that help	4–6	6–12
Storage (mods + maps)	50–150 GB	100–300 GB
Network	1 Gbps	1 Gbps (10 Gbps if heavily modded)

Sizing by player count

These are practical baselines for a single ARK map per server process. ASA numbers assume standard official-style settings; heavily modded ASA clusters need the top end or a second box.

Players	ASE RAM / CPU	ASA RAM / CPU
Up to 10	8 GB · 4 cores	16 GB · 6 cores
Up to 25	16 GB · 4–6 cores	24–32 GB · 8 cores
Up to 50	24–32 GB · 6–8 cores	48–64 GB · 10–12 cores
70+ / clustered	32–64 GB · 8+ cores	64–128 GB · 12+ cores

Launch flags and settings that matter

-USEALLAVAILABLECORES: forces the engine to use all cores; without it, ARK can pin a single core while the rest idle.
-servergamelog: enables the admin game log; keep it on for troubleshooting.
RCON: enable RCONEnabled=True and set a strong RCON password for scripted restarts and admin commands.
Save intervals: keep AutoSavePeriodMinutes between 15 and 30; shorter intervals cost CPU, longer ones risk losing progress on a crash.
Mod counts: every mod adds memory; a 30-mod ASA server can need 20+ GB just for content. Prune unused mods before blaming the host.
ASA crossplay: Steam/Windows/Xbox crossplay changes the update cadence and forces more frequent restarts; plan maintenance windows accordingly.

Networking and DDoS

ARK servers listen on UDP 7777 (game) and UDP 27015 (query), with a TCP port for RCON. On a dedicated server you control the firewall directly — open only what you need. Public ARK servers are frequent DDoS targets, so make sure the provider’s mitigation covers UDP floods, not just HTTP. Our provider table lists which dedicated plans include always-on mitigation.

Backups and updates

ARK updates can invalidate mod versions and break saves if applied mid-wipe. Automate the pattern: stop the server, snapshot the world files, apply the update, start, verify. Tools like ArkServerManager (Windows) or a small systemd service with pre/post hooks (Linux) handle this cleanly. Keep at least three rolling backups — one daily, one weekly, and one before each map wipe.

Managed vs unmanaged, briefly

ARK’s configuration surface is large enough that managed hosting earns its fee for non-technical communities. If you are comfortable with launch flags, RCON, and update scripts, an unmanaged dedicated box is far cheaper per slot — compare dedicated server plans on our comparison pages and do the math for your community size. Either way, buy more RAM than the minimum: ARK’s memory usage creeps upward over a wipe cycle, and OOM kills corrupt saves.

Bottom line

In 2026, ARK hosting is really two separate problems: keep ASE lean, or budget properly for ASA’s UE5 appetite. Size for ASA, use the core-unlock flags, automate backups and updates, and verify DDoS coverage before you go public.

Need dedicated hardware that can run this workload without breaking a sweat? InterServer’s dedicated server lineup offers current-generation CPUs, NVMe storage, and always-on DDoS protection — check InterServer dedicated servers here.