Hello everyone, We would like to take this opportunity to inform you all that as of our next release (5.18) Sven Co-op will no longer support running on various outdated operating systems. We do not have a release date for 5.18 yet, and to be honest aren't really in a position to consider a date yet, but we'd like to warn you all in advance anyway in case you need to plan any upgrades. We will of course mention this again in the 5.18 release notes, but please treat this as a final reminder. Part of the reason for this is Valve's decision to drop Windows XP and Vista support with Steam as of 1st January 2019.
Sven Game Sheep
Also as we previously announced nearly 3 years ago [forums.svencoop.com] this would be inevitable as operating system components begin to deprecate and remove older functionality, which is beyond our control. 
Using more up to date operating systems (and their underlying components) also offers us more opportunity to make the most of their functionality and efficiency upgrades, which ultimately ends up in a better product for all of you. Windows XP, 2003, Vista, and 2008 We don't need to tell you how out of date Windows XP and 2003 are. Given the growing number of security holes it has going un-patched it would be very ill-advised to use these operating systems for anything at all. Sven Co-op may still work with Windows Vista and 2008 for a while, however any issues that arise specific to this version will not be supported by us. We've not done anything deliberate to stop this working, but as none of our team use these versions we can't test on them.