Comment by kuschku

> I highly doubt many cross-platform games are ported at all - its just a different target in Unreal/Unity/etc.

Horizon is running in Guerilla Games' in-house Decima Engine, which is PS5-only for production builds. Ports are handled by nixxes.

Kojima games previously used Konami's in-house Fox Engine, again primarily designed for playstation. Since Kojima left Konami, Kojima games use the Decima Engine as well.