Make games with Superpowers — The extensible, collaborative HTML5 2D+3D game maker

Setting up Superpowers

Download the correct ZIP for your platform from the download page.
Unzip it in a convenient location and double-click on Superpowers.
The app will start.

You'll see a list of servers and your own local server should start up right away.

Superpowers uses TCP ports 4237 (for serving the client) and 4238 (for serving builds) by default, because port 80 requires special privileges on Linux & OS X. Additionally, programs like Skype might already be listening on it. You can change the ports used by Superpowers in the app's server settings tab.

If you do so, make sure to also edit the address of the "My Server" entry in the servers list to use the correct port.

Double-click on "My Server" and a tab will open. You'll be asked to choose a username.

Where's my data stored?

By default, your server configuration and projects are stored in the following places, depending on your operating system:

To make Superpowers self-contained (if you want to carry Superpowers on an USB stick for example), you can move the config.json file and the projects folder to Superpowers's app folder and it will automatically start using those. Be careful when upgrading though, you'll need to move those files from the old version to the new version manually.

Letting others join your server

By default, your server will only accept connections from the computer it is running on.

To open up your server to others, setup a password in the Settings and stop/start the server.

You'll probably need to configure your home router and/or firewall to allow (or forward) inbound TCP connections on the port numbers your server is listening on (4237 and 4238 by default).

Once your server is open, get your public IP address and you can send a link of the form ip:port to the people you want to work with (e.g. They can either paste this link in their browser's address bar to join without installing anything or add it to their Superpowers servers list from the app.

Make sure to share your public IP address with those you want to collaborate with. is a special address that always points to the computer you're using it on, so others won't be able to connect to your server with it.

The simplest way to get your public IP address is to ask Google.

Running a Superpowers server from the command line

It might be useful to run Superpowers on a headless server so that you don't have to keep your desktop computer on at all times.
This should work on any Linux server including a Raspberry Pi.

By default, Superpowers will store configuration and projects files in $XDG_DATA_HOME/Superpowers (or ~/.local/share/Superpowers if $XGD_DATA_HOME is undefined). You can use the --data-path= option to override that behavior.

After launching your server for the first time, you'll need to stop it (with Ctrl+C) and go edit the generated config.json file to set a password, then start the server up again. You can also customize the ports it'll be listening on.