Can I be the first to say:
NNNNNNNNNNNOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!
I guess the writing was on the wall considering the game has been in development hell for many years, but I still look back at the original announcement trailer and think about how cool this game could have been. It was essentially sold as Minecraft but better - with proper combat, better exploration, powerful dedicated modding tools, and more. It was to be created by the creators of probably the biggest Minecraft server ever, which meant they understood the ins and outs of the game and what it needed to improve.
What a shame. At least we got Vintage Story.
He actually had a hand in tweaking Decima too! When he signed on with Guerrilla, they basically hadn’t planned on offering the engine for external use. It was something they had simply developed for themselves. Guerrilla gave Kojima the framework, and went “well you helped develop FOX, so help us develop Decima (the new name for the previously unnamed engine) too.”
The engine name is even a reference to Dejima Island, which was a Dutch trading port in Japan; For much of Japan’s history, the Dutch were the only ones allowed to trade with Japan. So the name has some strong symbolic meanings, with Guerrilla being a Dutch company and Kojima being Japanese.