Han slog pjalterne sammen med Sony om hans nyeste projekt Death Stranding og han tog efterfølgende på tur med Sonys Mark Cerny i jagten på en spilmotor til projektet. De to herrer endte hos Guerilla Games i Holland, som i disse dage frigiver deres meget ventede Horizon: Zero Dawn og det spil kører på deres egen Decima spilmotor – og hurtigt faldt valget på denne spilmotor.
I forbindelse med udgivelsen af Horizon: Zero Dawn, har Kojima på PlayStation Blog udtalt sig i rosende vendinger om teknologien bag spillet:
”I visited many studios all around the world, meeting many great people. Guerrilla Games in Amsterdam: their technology was just a league ahead of everywhere else. Even though they have an open world they are able to render very rich scenes with many objects. As you know their upcoming game Horizon Zero Dawn, which is coming out in February, has an artistic sensibility, particularly with regards to the use of color, whereas we're looking for a very photo-realistic sensibility. Their engine is built for their purposes, for the game that they wanted to create, and as I said we wanted to create a game that even at the very base levels looks very different from that, so we needed to test it to see how far we could tune their engine to fit our purposes.”
Horizon: Zero Dawn udkommer eksklusivt til PlayStation 4 i morgen den 1. marts.