Xenonauts: Community Edition (X:CE) is an unofficial community-made update for Xenonauts, produced by volunteer programmers who have been given access to the source code of the game by the developers of the original game.
The intention is: To enhance and improve the original Xenonauts gameplay experience without fundamentally altering the gameplay, whilst also allowing improved mod integration and offering a larger range of optional game customisation options to those that wish to use them.
X:CE is therefore meant to be an improved version of the original game, including additional bugfixes and various new features that do not fundamentally alter the intended game experience (rather, they just make it play better).
It is also intended to include a number of optional improvements and a more advanced mod loader than the original game. This will make it easier for people to change the game if they want a non-vanilla experience.
A more detailed summary of X:CE and answers to some common questions are in the post below.
Please bear in mind that X:CE is not an official Goldhawk product. It is community owned and community driven, which means Goldhawk cannot be held responsible for the content of the updated game or any bugs it may introduce, nor provide any customer support for it. That too will have to be handled by the volunteers who produced X:CE in the first place.
How do I get it?
If you are on Steam and on Windows, all you need to do is to change to the Community branch:
Right click on Xenonauts >>> Properties >>> Betas >>> Community
You can revert to the standard official branch at any time by selecting the "NONE" option from the same list.
If you are not on Steam / Windows you will need to install it manually. Download the desired version from the X:CE Release Announcements subforum and follow the install instructions in that thread.