Sure, but it doesn’t make them nazis

Absolutely true. However, the lines between proper Nazis and AfD/its sub-organizations is very blurry. Even courts and the secret service for the interior have said so recently. Still, calling people Nazis who support and vote for Nazis and their allies is not quite correct.

How do you explain the difference between Germany and Japan in this regard?

You are using two very different things interchangeably here: genocide and acknowledgement of genocide. Acknowledgement isn’t the right description in any case, maybe education would be more accurate. Germany „gets credit“ for it, because sadly, in comparison to most other nations, it does it well. And acknowledging this might make others reconsider.

That’s a meme, it’s not how history works or how it ever has worked.

True, but games are different and an open-world game should be fun for far longer than for example a linear shooter, due to density and freedom with sandbox elements.

Since you are being a bit nitpicky here: The people you replied to did say „exclusives“ and „games“, so…

The Russian invasion of Ukraine is Germany’s fault because they were buying gas? Is that right?