By | August 06 2012 11:16 AM

Files within Valve's new Source Filmmaker program hide a not-so-well-kept secret, according to EuroGamer. The existence of the company's Source 2 engine. The Source engine is a versatile gaming engine that provides players with multiple options for creation using tools provided by Valve (the company behind such titles as "Team Fortress 2", the "Portal" and "Left 4 Dead" series). The discovery of files and code related to Source 2 indicate that the engine is, in fact, under development by Valve, who are notoriously secretive when it comes to announcements of either games or technology.