Valve is always in the holiday spirit, as evident by their yearly “Steam Holiday Sale”, but saving money isn’t Valve’s only gift this year. Content creators now have something to look forward to during the holiday break.

The Left 4 Dead 2 Authoring Tools, as well as Left 4 Dead 2 Add-on Support is now available for use by players and designers. If you’re sitting there wondering why this is a big deal, these tools will allow those outside of Valve to create content for L4D2 more easily using the applications, utilities and example files included in the download. These new tools include the AI Director logic, scavenge mode support and much more. If you only want to play these custom campaigns, as opposed to creating your own, you will be more interested in downloading the Add-on Support, as the Authoring Tools are purely for those wishing to design.

With these tools now available for content creators, you can be sure that new add-ons for the game will be arriving soon, straight from the players. If you are interested in downloading either the Authoring Tools or Add-on Support, both are located in your steam Tools tab.

All I want for Christmas is an SDK [Left 4 Dead Blog]