Fits your load
VPS Pro
6 vCPU, 12 GB DDR5, 120 GB NVMe, 8 TB traffic
₹5,340$56.49/mo
Deploy ProAbout ProArma Reforger server requirements
What a Arma Reforger server needs in CPU, memory, disk and bandwidth, by player count. Change the numbers for your own server; the sources are listed below.
What it needs
- CPU
- 4 coresSingle-thread heavy: clock speed matters more than core count.
- Memory
- 9.5 GB
- NVMe storage
- 25 GB
- Traffic per month
- 435 GB
- Busiest upload
- 3.8 Mbit/s
On Clouduxe
Room to grow
VDS FusionCore
4 dedicated cores, 16 GB DDR5, 200 GB NVMe, 10 TB traffic
₹9,940$104.49/mo
- 4 dedicated cores instead of 6 shared vCPU: the game's main thread gets cores no other customer uses.
- 4 GB more memory, 80 GB more NVMe.
- Headroom for busy evenings, more players, and the mods and updates you add later.
By player count. Without mods (bohemia workshop); each step up in the calculator adds memory, disk and sometimes a core.
| Players | CPU | Memory | NVMe | Traffic a month | Fits your load | Room to grow |
|---|---|---|---|---|---|---|
| 16 | 4 cores | 6.5 GB | 25 GB | 218 GB | VPS Growth | VDS FusionCore |
| 32 | 4 cores | 9.5 GB | 25 GB | 435 GB | VPS Pro | VDS FusionCore |
| 48 | 5 cores | 12.5 GB | 25 GB | 653 GB | VDS OmniCore | VDS PrimeCore |
| 64 | 5 cores | 15.5 GB | 25 GB | 871 GB | VDS OmniCore | VDS PrimeCore |
| 96 | 6 cores | 22 GB | 25 GB | 1.3 TB | VDS OmniCore | VDS PrimeCore |
| 128 | 7 cores | 28 GB | 25 GB | 1.7 TB | VDS PrimeCore | VDS TitanCore |
Traffic assumes 35% of the player cap online on average across the month; change it under Assumptions in the calculator.
Where the numbers come from. Published figures first, then how the calculator turns them into a model.
Published requirements
Up to 32 [players]: 8 GB+ RAM, 4 fast cores. The server executable uses roughly 3 GB of RAM just on startup, climbing as players and AI join.
Arma Reforger Server Requirements: CPU, RAM & Player Counts - XGamingServer
It is CPU-bound, since large Conflict battles run heavy AI, so prioritize fast cores over a GPU: plan for roughly a 4-core CPU and 8 GB of RAM for 32 players, 16 GB for 64, and much more toward the 128-player cap.
Arma Reforger Server Hosting - Host Havoc (self-hosting guide section)
64-128 (heavy AI): 16 GB+ RAM, Top-tier single-thread [CPU]. AI-heavy Game Master scenarios push CPU far harder than the player count alone suggests.
Arma Reforger Server Requirements: CPU, RAM & Player Counts - XGamingServer
How the model is built
- Memory
- 3 GB plus 200 MB per player. Base 3GB matches a hosting guide's figure that 'the server executable uses roughly 3 GB of RAM just on startup' before players or AI load. perPlayerMB=200 is calibrated so the model lands near 9-10GB at 32 players (matching the widely cited '8GB+ for up to 32 players') and near 16GB at 64 players (matching '16GB+ for 64'), the two concordant figures given by two independent hosting guides.
- CPU
- 4 cores, one more for every 40 players. Both sources consulted agree the Reforger server is CPU-bound and leans on single-thread speed because AI (Game Master/Conflict AI), vehicle simulation and networking run on limited cores; both recommend a 4-core CPU as the practical baseline rather than more cores. playersPerExtraCore=40 keeps the model at 4 cores through the documented 32-64 player range and only adds cores for very large, AI-heavy 96-128 player servers.
- Disk
- 15 GB for the server plus 10 GB for saves and backups, on SSD or NVMe. No source consulted publishes an exact dedicated server disk size (Bohemia's own wiki page for this was inaccessible). installGB/growthGB are an estimate by analogy to comparable dedicated server installs from the same class of game (roughly 10-20GB), not a directly sourced figure; treat this field as lower confidence than RAM/CPU. NVMe/SSD is recommended by hosting guides for load speed and to avoid AI/tick stutter.
- Bandwidth
- 120 kbit/s of upload per player. No source consulted gives a bandwidth-per-player figure for Arma Reforger specifically. Estimated by analogy to Bohemia Interactive's own published guidance for DayZ (their other current dedicated-server title), which recommends planning for 80-120 Kbit/s per player; this is a derived estimate, not a Reforger-specific sourced number.
- Mods (Bohemia Workshop)
- Memory times 1.3 for some and 1.7 for heavy; a heavy load also adds a core.
Bohemia Interactive's own wiki page for Arma Reforger dedicated servers could not be accessed (blocked to automated fetches), so RAM/CPU figures come from two independent, concordant hosting-provider guides rather than a single developer spec sheet. Disk space and bandwidth per player are not sourced from any Reforger-specific documentation and are derived estimates, flagged as such; treat them as lower confidence than the RAM/CPU/port figures. AI density (Game Master scenarios, Conflict mode) affects load more than player count and cannot be captured by a player-count-only model.
Before you set it up. The ports it listens on and what the guides say drives its load.
Ports
| Port | Protocol | Used for |
|---|---|---|
| 2001 | UDP | game (default bindPort in config.json) |
| 17777 | UDP | steam query |
Game server hosting: every game we size, the protection each one gets, and the plan for it.
DDoS protection is on every Clouduxe plan. How Prism handles game traffic.
What drives the load
- AI count (Game Master and Conflict AI), not player count alone, is the biggest CPU cost; capping AI is the single most effective way to protect performance.
- The server is CPU-bound and leans on single-thread speed, so a fast CPU core matters more than adding cores or RAM.
- The server process already uses roughly 3GB of RAM on startup before any players or AI load in.
- Tick rate and view distance settings directly affect server load and can matter more than player count.
Arma Reforger server questions
How much RAM does a Arma Reforger server need?
About 6.5 GB for 16 players and 28 GB for 128, before mods (bohemia workshop). Base 3GB matches a hosting guide's figure that 'the server executable uses roughly 3 GB of RAM just on startup' before players or AI load. perPlayerMB=200 is calibrated so the model lands near 9-10GB at 32 players (matching the widely cited '8GB+ for up to 32 players') and near 16GB at 64 players (matching '16GB+ for 64'), the two concordant figures given by two independent hosting guides.
How many CPU cores does a Arma Reforger server need?
4 for 16 players, 7 for 128. The server is single-thread heavy, so the clock speed of one core matters more than how many cores it has. Both sources consulted agree the Reforger server is CPU-bound and leans on single-thread speed because AI (Game Master/Conflict AI), vehicle simulation and networking run on limited cores; both recommend a 4-core CPU as the practical baseline rather than more cores. playersPerExtraCore=40 keeps the model at 4 cores through the documented 32-64 player range and only adds cores for very large, AI-heavy 96-128 player servers.
How much bandwidth does a Arma Reforger server use?
About 120 kbit/s of upload per connected player, so 3.8 Mbit/s with 32 players online and about 435 GB a month if 35% of that cap is online on average. No source consulted gives a bandwidth-per-player figure for Arma Reforger specifically. Estimated by analogy to Bohemia Interactive's own published guidance for DayZ (their other current dedicated-server title), which recommends planning for 80-120 Kbit/s per player; this is a derived estimate, not a Reforger-specific sourced number.
Which Clouduxe plan should I pick for Arma Reforger?
For 32 players, VPS Pro fits the load and VDS FusionCore leaves room to grow. Every plan includes DDoS protection: 17 Tbps of upstream mitigation plus Clouduxe Prism on the server.
Other games. The same calculator, sized from each game's own documentation.
All calculatorsHost Arma Reforger on VPS Pro.
Sized for 32 players, with DDoS protection included. Or talk to us about a bigger server.