Making Anastasia into a video game character, per se, isn't a problem.
It's a matter of how well she is made into one.
So far, I haven't seen a good video-game version of her.
I think Anastasia would have laughed long and hard seeing herself in a video game.
But, I think it's going far in saying her image is ruined. Stuff like that is just funny, and could be fun.
There is so much dramatic about her: AA's case for example. Because this is really in that way that a mentally insane woman stole her identity, her life. And, people still refer AA as being the Grand Duchess. That's worse to me.