NatchPlay isn't out yet. This site shows what it's being built to do, the pings and measurements on it are real.

Games

The ports players need for the games people host most, taken from each game's own docs. Any game not listed works too, start its server and the agent finds the ports it's listening on.

Games and their ports

41 games

GamePorts players needHow players join
Minecraft Java Edition 25565 TCP Server address in Multiplayer, no port needed
Minecraft Bedrock Edition 19132 UDP Servers tab, add the address and port
Hytale 5520 UDP Address from the Servers screen
Rust 28015 UDP28016 UDP Server browser or client.connect
Valheim 2456 UDP2457 UDP Join IP, or the Steam server list
Palworld 8211 UDP Connect by IP, or the community server list
ARK: Survival Evolved 7777 UDP7778 UDP27015 UDP Unofficial server list or the Steam browser
ARK: Survival Ascended 7777 UDP In-game session browser
7 Days to Die 26900 TCP26900 to 26903 UDP In-game server browser or direct IP
Project Zomboid 16261 UDP16262 UDP Steam server browser or direct IP
Enshrouded 15637 UDP In-game server browser
Satisfactory 7777 TCP UDP8888 TCP Server Manager, add by IP
Conan Exiles 7777 UDP7778 UDP27015 UDP In-game server browser or direct connect
Arma 3 2302 to 2306 UDP In-game and Steam server browsers
Arma Reforger 2001 UDP Server browser, cross-platform with consoles
Abiotic Factor 7777 UDP27015 UDP Server browser or join code
Unturned 27015 UDP27016 UDP Server list or direct IP
Space Engineers 27016 UDP Steam server browser or direct IP
Counter-Strike 2 27015 UDP Connect by IP or the community browser
Garry's Mod 27015 UDP Server browser or connect by IP
Left 4 Dead 2 27015 UDP Console connect, or the Steam browser
Barotrauma 27015 UDP27016 UDP Server browser or direct IP
Don't Starve Together 10999 UDP In-game server browser
Factorio 34197 UDP Connect by address, or the public list
Necesse 14159 UDP Multiplayer, enter the address and port
Icarus 17777 UDP27015 UDP Steam server browser
Terraria and tModLoader 7777 TCP Join via IP
Starbound 21025 TCP Multiplayer, enter the IP or name
Vintage Story 42420 TCP UDP Multiplayer, add the server by IP
Luanti (formerly Minetest) 30000 UDP Address and port, or the public list
Mindustry 6567 TCP UDP Join Game, enter the IP and port
Teeworlds and DDNet 8303 UDP Server browser or connect by address
OpenTTD 3979 TCP Connect by address or invite code
SCP: Secret Laboratory 7777 UDP Server browser or direct connect
Assetto Corsa 9600 TCP UDP8081 TCP Lobby server list or direct
BeamMP 30814 TCP UDP Launcher server list or direct connect
FiveM 30120 TCP UDP Cfx.re server list or connect by IP
Among Us with Impostor 22023 UDP22023 TCP A custom region pointing at the server
Eco 3000 UDP3001 TCP In-game server browser or direct connect
Avorion 27000 TCP UDP Server list or direct IP
Veloren 14004 TCP Address in the server list

Not in the list

  • Any other game

    Start its server and the agent sees which ports it's listening on, then offers them. Admin ports such as RCON stay private unless you tick them. You can always type ports in by hand.

  • Games that don't need a relay

    Some games join through Steam's own relay network, so there's nothing to forward. Euro Truck Simulator 2 and American Truck Simulator dedicated servers work that way. So does Core Keeper when players join by Game ID.