Reference
Game server ports
The default ports for 40 game servers, what each one is for, and which ones to keep private.
These are each game's defaults. Hosts and panels often change them, so check your server's config before opening a firewall.
Keep private marks an admin port. Allow only your own IP addresses to reach it, never everyone.
GamePortProtocolUsed for
7 Days to Die
7 Days to Die server ports Port Protocol Used for 26900 TCP + UDP Game and Steam query 26901–26902 UDP Game 8080 TCP Web dashboardKeep private 8081 TCP Telnet consoleKeep private ARK server ports Port Protocol Used for 7777 UDP Game 7778 UDP Second game port 27015 UDP Steam query 27020 TCP RCONKeep private Arma 3
Arma 3 server ports Port Protocol Used for 2302–2306 UDP Game, Steam query and BattlEye Arma Reforger
Arma Reforger server ports Port Protocol Used for 2001 UDP Game 17777 UDP Steam query 19999 TCP RCONKeep private Assetto Corsa
Assetto Corsa server ports Port Protocol Used for 9600 TCP + UDP Game 8081 TCP Lobby and server info Barotrauma
Barotrauma server ports Port Protocol Used for 27015 UDP Game 27016 UDP Steam query BeamMP
BeamMP server ports Port Protocol Used for 30814 TCP + UDP Game Conan Exiles
Conan Exiles server ports Port Protocol Used for 7777–7778 UDP Game 27015 UDP Steam query 25575 TCP RCONKeep private CS2 server ports Port Protocol Used for 27015 UDP Game and Steam query 27015 TCP RCONKeep private DayZ
DDoS protectionDayZ server ports Port Protocol Used for 2302 UDP Game 27016 UDP Steam query Don't Starve Together
Don't Starve Together server ports Port Protocol Used for 10999–11000 UDP Overworld and caves shards Eco
Eco server ports Port Protocol Used for 3000 UDP Game 3001 TCP Web map and stats Enshrouded
Enshrouded server ports Port Protocol Used for 15636 UDP Game 15637 UDP Steam query Factorio
Factorio server ports Port Protocol Used for 34197 UDP Game FiveM
DDoS protectionFiveM server ports Port Protocol Used for 30120 UDP Game traffic 30120 TCP Connect and downloads 40120 TCP txAdminKeep private Garry's Mod
DDoS protectionGarry's Mod server ports Port Protocol Used for 27015 UDP Game and Steam query 27015 TCP RCONKeep private Insurgency: Sandstorm
Insurgency: Sandstorm server ports Port Protocol Used for 27102 UDP Game 27131 UDP Steam query Killing Floor 2
Killing Floor 2 server ports Port Protocol Used for 7777 UDP Game 27015 UDP Steam query 8080 TCP Web adminKeep private Left 4 Dead 2
Left 4 Dead 2 server ports Port Protocol Used for 27015 UDP Game and Steam query 27015 TCP RCONKeep private Minecraft
DDoS protectionMinecraft server ports Port Protocol Used for 25565 TCP Java Edition 19132 UDP Bedrock Edition 25565 UDP Query 24454 UDP Simple Voice Chat 25575 TCP RCONKeep private Mordhau
Mordhau server ports Port Protocol Used for 7777 UDP Game 27015 UDP Steam query 15000 UDP Server list beacon Mumble
Mumble server ports Port Protocol Used for 64738 TCP + UDP Voice Necesse
Necesse server ports Port Protocol Used for 14159 UDP Game Palworld
Palworld server ports Port Protocol Used for 8211 UDP Game 27015 UDP Steam query 25575 TCP RCONKeep private Project Zomboid
Project Zomboid server ports Port Protocol Used for 16261 UDP Game 16262 UDP Direct connection 27015 TCP RCONKeep private RedM
RedM server ports Port Protocol Used for 30120 UDP Game traffic 30120 TCP Connect and downloads 40120 TCP txAdminKeep private Rust
DDoS protectionRust server ports Port Protocol Used for 28015 UDP Game 28017 UDP Steam query 28082 TCP Rust+ companion app 28016 TCP WebRCONKeep private Satisfactory
Satisfactory server ports Port Protocol Used for 7777 TCP + UDP Game and server API Sons of the Forest
Sons of the Forest server ports Port Protocol Used for 8766 UDP Game 27016 UDP Steam query 9700 UDP World sync Soulmask
Soulmask server ports Port Protocol Used for 8777 UDP Game 27015 UDP Steam query Space Engineers
Space Engineers server ports Port Protocol Used for 27016 UDP Game and Steam query Squad
Squad server ports Port Protocol Used for 7787 UDP Game 27165 UDP Steam query 21114 TCP RCONKeep private Starbound
Starbound server ports Port Protocol Used for 21025 TCP Game Team Fortress 2
Team Fortress 2 server ports Port Protocol Used for 27015 UDP Game and Steam query 27020 UDP SourceTV 27015 TCP RCONKeep private TeamSpeak 3
TeamSpeak 3 server ports Port Protocol Used for 9987 UDP Voice 30033 TCP File transfer 10011 TCP ServerQueryKeep private Terraria
Terraria server ports Port Protocol Used for 7777 TCP Game Unturned
DDoS protectionUnturned server ports Port Protocol Used for 27015–27016 UDP Game and Steam query V Rising
V Rising server ports Port Protocol Used for 9876 UDP Game 9877 UDP Steam query 25575 TCP RCONKeep private Valheim
Valheim server ports Port Protocol Used for 2456–2457 UDP Game and Steam query Vintage Story
Vintage Story server ports Port Protocol Used for 42420 TCP + UDP Game
Protect every one of these ports
Keep your host. Sterile filters floods before they reach your server, with a premade profile for each game port. Blocked attack traffic is never billed.