Creating network connections with Godot is simple — as long as you have the other party’s IP address, and there’s no NAT gateway involved. Unfortunately, that’s exactly the problem in most cases. You don’t know the other party’s IP, and these days, just about everyone is behind a combination wifi router/gateway/firewall with NAT.
Conceptually, NAT hole-punching is pretty simple, and this video explains how it’s done with just netcat.
In a nutshell:
listen on a particular port (e.g. 50001)
nc -u -l 50001
echo ‘hello’ | nc -u ipaddr 50001
echo ‘hole punch’ | nc -u -p 50001 ipaddr 50002
third party exchanges ip addresses
Putting it all together, player A (hosting a game) would require the game to connect to the directory server.
The directory server would list the game as something a player can now connect to.
player B (client who wants to join) will tell the directory service that it wants to connect, and will send its info
The directory server forwards the information to player A (host), player A will then send a packet to player B, and respond to the directory server
The directory server will then tell player B to go ahead and connect to player A.
Player B should be able to punch through to player A
With Godot, the connections from client to host would use ENetMultiplayerPeer.create_client(), which can specify the local port.
The Terrain3D addon for Godot lets you create and manage 3D terrains within Godot. It looks quite promising for making landscapes, hills, valleys, and other natural environments. The addon provides tools for sculpting the terrain, and you can paint different textures like grass, dirt, or rock, and blend them smoothly. It also supports features like …
Right after I got my Steam Deck, I wanted to know how hard it is to get a Godot game running on it. What’s the developer experience for someone who’s stepping through this for the first time? It was really easy to do, so I’m sharing this here, whether you’re following along or like to …
Version 1.0 of the Inventory System is now available. It includes a few new additions since the closed beta: Lots of fixes found their way into this release as well:
Once I found out about the Steam Deck’s Desktop Mode, it got even more interesting. Steam Deck’s Gaming Mode vs Desktop Mode You see, the Steam Deck defaults to an analog of Big Picture mode on PC. It runs full screen in “Steam Deck gaming console” mode. But underneath all that is a Linux system …
Creating a UDP peer-to-peer connection
Creating network connections with Godot is simple — as long as you have the other party’s IP address, and there’s no NAT gateway involved. Unfortunately, that’s exactly the problem in most cases. You don’t know the other party’s IP, and these days, just about everyone is behind a combination wifi router/gateway/firewall with NAT.
Conceptually, NAT hole-punching is pretty simple, and this video explains how it’s done with just netcat.
In a nutshell:
Putting it all together, player A (hosting a game) would require the game to connect to the directory server.
With Godot, the connections from client to host would use ENetMultiplayerPeer.create_client(), which can specify the local port.
Here’s an older example of a signaling server: https://github.com/Faless/gd-webrtc-signalling/tree/master
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Terrain3D for Godot has been released
The Terrain3D addon for Godot lets you create and manage 3D terrains within Godot. It looks quite promising for making landscapes, hills, valleys, and other natural environments. The addon provides tools for sculpting the terrain, and you can paint different textures like grass, dirt, or rock, and blend them smoothly. It also supports features like …
Running Godot Games on Steam Deck
Right after I got my Steam Deck, I wanted to know how hard it is to get a Godot game running on it. What’s the developer experience for someone who’s stepping through this for the first time? It was really easy to do, so I’m sharing this here, whether you’re following along or like to …
Inventory System v1.0 available
Version 1.0 of the Inventory System is now available. It includes a few new additions since the closed beta: Lots of fixes found their way into this release as well:
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Once I found out about the Steam Deck’s Desktop Mode, it got even more interesting. Steam Deck’s Gaming Mode vs Desktop Mode You see, the Steam Deck defaults to an analog of Big Picture mode on PC. It runs full screen in “Steam Deck gaming console” mode. But underneath all that is a Linux system …