ThomasMy next step is to make a more complete example of using this to package a game (so far, I've tested with the 'aliens' example that ships with pygame). I might try with the solarwolf example on Pygame's Github org - or if anyone wants to suggest another suitable open-source game based on pygame, I could try with that.I developed this a bit further, though there's still more I hope to do with it.It turns out that building a custom runtime is discouraged; the better way to support game developers is to build a 'base app', which people can then add their own game files to. I have prepared two different base apps: one includes Python 3.6, and makes a download of about 30 MiB. The other uses Python 3.4 from the shared runtime, so is a download of about 7 MiB. My idea is that the game developer can choose between the latest language features and a quicker installation.On 26 February 2017 at 19:47, Thomas Kluyver <takowl@xxxxxxxxx> wrote:ThomasThanks,The big improvement I'd like to make is building a dedicated Flatpak 'runtime' for pygame, including a newer version of Python - the base runtime I'm using at present has Python 3.4.This is quite rough at the moment, but I think it has good potential for distributing games to Linux users in the future. It looks like  Flatpak is on its way to becoming the default cross-distro app distribution mechanism for desktop Linux.I spent a while today playing with Flatpak, a new system for packaging sandboxed applications on Linux. The result is an example that can build and install Pygame's Aliens example game:If you're running Fedora 24+, Ubuntu 16.10 (might need a PPA?) Debian testing/unstable or Arch, you can install Flatpak and try it out.