Half-Life 3 could be taking so long because Valve may be creating a whole new engine for it, according to a breaking rumour.
Discovered by Valvetime.net, files located within Valve’s Filmmaker program reference what could be the studio’s next-gen engine.
This line of code in particular catches the eye, “Return an str with the current engine version. If key doesn’t doesn’t exist, assume ‘Source’, otherwise invalid — assume next-gen ‘Source 2′”
The launch of Source 2 would go against Valve’s tradition of incrementally updating the Source engine over time, but it could give the studio a huge leap going into the next-gen of game development.