Left 4 Dead 2 Extended Mutation System allows more complex modding, custom scripts

Left 4 Dead 2 Extended Mutation System

The extent of Left 4 Dead 2's mods already defies description, where the truly wacky shambles alongside the horde of new weapons and campaigns . Now, Valve wants to further slash at the barrier between a modder's creativity and what's possible in-game with the Extended Mutation System , an expanded scripting toolset and the future name of my progressive rock band.

As Valve explains it, the system "allows script authors to go past modifying existing scripts and write custom script logic, spawn and control entities, and much more." Think of entirely new game modes, a restructured Director, or custom HUDs. One of Valve's examples was a mode called Holdout that has survivors buying and erecting barricades against waves of undead similar to Call of Duty's Zombies spin-off.

The Extended Mutation System is in beta testing for now, but Valve's developer wiki already provides a few initial walkthroughs for sample custom modes. I'm keen on GnomeHunter —a CTF-meets-hot-potato mode where players have to lug that infernal garden gnome to a locker—but I'd love seeing a variation of Team Fortress 2's Prop Hunt in Versus mode. Why? Because the Hunter can't smell me if I'm a safety cone. Make it happen, modders!

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Omri Petitte

Omri Petitte is a former PC Gamer associate editor and long-time freelance writer covering news and reviews. If you spot his name, it probably means you're reading about some kind of first-person shooter. Why yes, he would like to talk to you about Battlefield. Do you have a few days?