McDermott and Polito began negotiations with Valve to gain access to the GoldSrc engine around 2010 and to have Valve change some of the numerical limits originally imposed in the engine's use in "Half-Life" that would enable them to improve "Sven Co-op". The two got official approval from Valve to release "Sven Co-op" on Steam as a standalone title in 2012, though opted to wait nearly a year to announce this in July 2013, as to give their team time to develop a hotfix for the current mod version. This standalone title was released on January 22, 2016, and includes all the assets for "Half-Life" required to play that game without installing the original game; players are still required to have purchased and installed "Opposing Force" and "Blue Shift" to play those in the standalone release of "Sven Co-op". The standalone version includes updated versions of the "Half-Life" campaign maps, improved versions of popular maps developed for "Sven Co-op", and additional scripting tools that will allow level designers to further customize new maps beyond the default GoldSrc. McDermott stated that their team anticipates continuing to improve tools for level designers, such as being able to replace the game's default heads-up display, though as the game is still developed in the team's free time, there is no set plans for when these will be available.