If you’re big into Source modding, then you’ve probably already heard about Ivan’s Secrets, a very promising Source mod built on the Alien Swarm engine. Not only have they got some incredible technology on their hands (including an unbelievable real-time global lighting system that’s miles beyond anything Valve’s ever pulled off), but they’ve also got some very interesting gameplay (And there’s even coop!), by the looks of it. And it’s been in development since mid-2008. But… unfortunately, it seems like most of that might be about to change, because the mod is moving to CryEngine, and, quite possibly, going commercial.