Interview with the people behind the Fox Engine

Famitsu conducted an interview with Kojima Productions developers Junji Tago (technical director) and CG art director Hideki Sasaki. Gaming website Polygon posted a translation.

The reason Kojima Productions decided to make their own engine, was that it would allow them complete freedom in game design. They didn’t want to be limited by features in existing engines, since they are trying to make something that goes one step beyond normal games.

One thing that makes the Fox Engine stand out from other engines is the fact that the changes you make in the game immediately appear on screen. This saves times and allows for more trial and error, and, eventually, more quality.


While the engine team and the game development team are seperate, they do work closely together. Hideo Kojima may request certain things, which then get implemented by the engine team. At GDC, they talked about aiming for photorealism in Metal Gear Solid V, but at the same time, artistic design is very important as well.

With Metal Gear Solid V, they are working with a combination of body and facial motion capture, instead of doing perfomance capture (which is doing it all at the same time). The difficluty of performance capture is that one actor has to do everyting (face, body, voice) right at once. This would lead to more retakes. Another option would’ve been to do go to Hollywood for the recording, but that would have meant Kojima going back and forth all the time. So they decided to record voices and body seperately.


Fox Engine is meant for wide usage, more than just MGS. Right now Konami is developing a new Pro Evolution Soccer using the engine.

Source: Polygon, Famitsu

  • ObsessedGeorge

    Just by reading this, i got even more hyped about the Pre-E3 Konami show! Just clone Kojima and let the world be a better place!

  • MfLuder

    Thanks for the summary of the interview! Sounds fascinating!

  • MrVux007

    *The difficulty of performance capture is that one actor has to do everything (face, body, voice) right at once.* Imagine yourself walking round the streets and all the sudden u bump into a guy who does Big Bosses (face,body,voice) Motion capture…..i swear id say in Solid Snakes voice * BIG BOSS!!!!!!* 😀

    • Fredy Carius

      VIC BOSS _o>

  • XIFF-5



    • MrVux007

      and the list goes on and on :D…….

  • PrinceHeir

    “So they decided to record voices and body seperately.”

    i wonder if they’re using the japanese mo cap actors(which they always used), then again Big Boss looks alot stern and in this game.

    at least Akio Otsuka reprises his role as Big Boss(at least in Ground Zeroes)

    i wonder what will happen in Phantom Pain?

    can’t wait for the show!!!

    still i do have to wonder if this will really be the final MGS game?

    if the timeline is correct, there’s only a few years before the events of the original MSX games.

    still Kojima can also do The Boss game, but i prefer it being shrouded in mystery rather than risk of changing his character too much based on MGS3/Peace Walker.

    still i do hope in Phantom Pain, we FINALLY see young Sniper Wolf being trained by Big Boss!!!!!

    • Nyxus

      I don’t think this will be the last MGS game. Even if Kojima stops making them, he said he wanted the series to continue in the hands of a new generation.

      • PrinceHeir

        yeah i don’t think so as well, he cares too much about the series to let go.

        i think he should set up a dedicated team he trust (like Shuyo Murata, who wrote the games with him) and let Yoji Shinkawa handle the art.

        though i really REALLY want to see a Complete Remake of the two MSX Metal Gear games.

        Solid Snake vs Grey Fox, Big Boss vs Solid Snake all in HD 1080p?!?!?!

        that would be godly!!!!!

        it would completely overtake the battle between Liquid Ocelot vs Solid Snake or even The Boss vs Naked Snake!!!!

        • Nyxus

          Tell me about it, I’ve been hoping for that for several years now. Maybe some day.

  • Joseph

    Was anyone else freaked out when they showcased the Ground Zeroes trailer in daytime??

    • ObsessedGeorge

      Yeah, i did!!! Although, it could have been demonstrated with sound…

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