ARK is the one survival title where the map you pick changes the hardware you need. Terrain complexity, cave geometry, weather systems, and spawn density all vary enough between The Island, Scorched Earth, Aberration, Extinction, Genesis, and Ragnarok that a spec that holds 60 players at 30 tick on one map will sag below 20 on another. This matrix is built for the admin sizing a cluster in 2026 — map by map, with the hardware figure attached and a provider grid for the platforms that support them. Both ARK: Survival Evolved (UE4) and Survival Ascended (UE5) figures are given, since ASA costs roughly 25-40% more RAM per map at the same population.
What Actually Differs Between Maps
Three server-side variables move between maps. First, streaming terrain cell count — larger open maps keep more cells resident, which is RAM. Second, dynamic object count — Aberration’s ziplines, charge lights, and radiation volumes add per-tick physics that other maps do not have. Third, weather and particle logic — Scorched Earth’s sandstorms and Extinction’s element veins run scripts at intervals that interrupt the tick loop. Population almost never matters as much as which map file is loaded.
Map-by-Map Hardware Matrix
| Map | RAM @ 50 players (ASE) | RAM @ 50 (ASA) | vCPU (dedicated cores) | Map + save footprint | Tick risk |
|---|---|---|---|---|---|
| The Island | 12 GB | 16 GB | 4 | 8-12 GB | Low |
| Scorched Earth | 10-14 GB | 14-18 GB | 4-5 | 10-15 GB | Medium (sandstorm) |
| Aberration | 16 GB | 20-22 GB | 6 | 15-20 GB | High (geometry) |
| Extinction | 14-18 GB | 20-24 GB | 5-6 | 14-18 GB | Medium-high (veins) |
| Genesis Pt 1 | 16-20 GB | 22-26 GB | 6 | 18-24 GB | High (biome scripts) |
| Genesis Pt 2 | 18-22 GB | 24-28 GB | 6-8 | 20-26 GB | High (ship grid) |
| Ragnarok | 18-24 GB | 26-32 GB | 6-8 | 20-28 GB | Highest (size + density) |
Ragnarok is the outlier that surprises people. It is not the most technically complex map, but it is the largest in playable area and supports the densest dino population, so it holds the most resident terrain cells and processes the most AI agents. A server that runs The Island at 45 tick will fall to 25-30 on Ragnarok with the same 50 players. That is not a hardware fault; it is the map.
Cluster Sizing: The Formula
Clusters are where budgets break. Each map instance is a separate process with its own full map in memory, and clustering does not share it. Use this arithmetic rather than adding player numbers:
total_ram = 6 GB (OS + save/backup overhead)
+ sum(map_ram for each map in cluster)
+ (players_on_busiest_map * 0.15 GB)
# Example: Island + Scorched + Aberration + Ragnarok, 40 players peak
# ASE: 6 + 12 + 12 + 16 + 22 + 6 = 74 GB -> 96 GB node
# ASA: 6 + 16 + 16 + 21 + 29 + 6 = 94 GB -> 128 GB node
vcpu = 2 * cluster_size (minimum; 3 * cluster_size for ASA)
nvme = sum(footprint) + 3 * sum(footprint) for backups
The 2.5x RAM multiplier on the RAM figure before rounding is deliberate. A cluster that fits exactly will run out during a migration event, when two maps briefly hold overlapping player state. Buy one tier above the calculation and you avoid a midnight wipe.
CPU, Storage, and the Autosave Window
ARK’s server process is dominated by one simulation thread, so a 4.2 GHz core beats two 3.5 GHz cores every time. For clusters, pin each map instance to its own dedicated cores — never let the scheduler float instances across a shared pool, because two maps hitting their save window simultaneously will saturate the node and cascade into a tick collapse across the whole cluster.
Storage is where admins under-buy. ARK autosaves the entire world state every 15 minutes by default, and cluster transfers write to disk. On a 20 GB Ragnarok world with 40 players, that save can be 400-800 MB. On SATA SSD that is a 1.5-3 second stall; on NVMe with power-loss protection it is under 200 ms. Set AutoSavePeriodMinutes to 20-30 on large maps and keep saves on a dedicated NVMe volume so a log flush cannot starve them.
[ServerSettings]
AutoSavePeriodMinutes=30
MaxPlayers=50
TheMaxStructuresInRange=10500
; Cluster transfer: NVMe only, and keep cluster dir on the same volume
ClusterDirOverride=/ark/cluster
NoTributeDownloads=False
Provider Comparison Grid
| Provider | Model | RAM range | Storage class | Cluster support | Fits |
|---|---|---|---|---|---|
| Nitrado | Virtual, 10 regions | 8-32 GB | SSD | Web UI cluster | Small clusters, 1-3 maps |
| Host Havoc | Virtual game nodes | 8-32 GB | NVMe | Yes, per-map | Mid clusters to 4 maps |
| Survival Servers | Dedicated CPU (i7/i9) | 8-32 GB | NVMe | Yes, 3 regions | Clock-sensitive clusters |
| GameServers.com | Managed, 15+ locations | 8-64 GB | SSD RAID-10 | Yes | Large clusters, ASA |
| GTX Gaming | Budget, Xeon E-2300 | 16-64 GB | SSD | Yes | Cost-led 5+ map clusters |
| Bare metal (self-managed) | Full node | 64-256 GB | NVMe you choose | Full control, any topology | 10+ maps, custom mods |
The grid’s useful column is the last one. Shared game-hosting plans cap at 32 GB on most of these providers, which is a hard ceiling of roughly four ASE maps or two ASA maps on one node. Above that you need either a 64 GB managed tier or a bare metal box where you install the ARK server yourself and control the cluster directory layout.
Mod Stacks and Their RAM Cost
ARK mods are heavier than Minecraft mods because many ship retextured assets and new creatures with their own AI. A stack of 20-40 workshop mods adds 6-12 GB to a map’s resident set, and the cost is not linear — the first ten mods may add 3 GB while a single large overhaul adds 5. If your cluster plan is tight, count mods per map and add 0.3 GB per mod as a planning figure, then verify with a real session. Mods that spawn creatures add per-tick AI cost as well, so a heavy stack typically drops tick rate by 10-20% independent of player count.
Migration and Backup Footprint
Plan storage for three times the live map size: live world, one rolling local backup, and cluster transfer staging. A six-map ASE cluster at 20 GB average needs roughly 360 GB of usable NVMe, plus offsite copies. Under-provisioning here is the most common cause of “cluster transfer failed” errors, which surface as players losing their inventory during a map hop rather than as an obvious disk-full alert.
Where to Start
Match the node to the largest map in the cluster (usually Ragnarok), not the average, and add one instance worth of headroom. If you are running ASA rather than ASE, add a full tier to every figure in the matrix. For bare metal or high-RAM managed configurations sized to a full six-map cluster, the dedicated server hosting plans list core counts and NVMe classes that meet the formula above, and the game server provider comparisons show which hosts allow the cluster directory and mod access you need.


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