In walking simulators, violence is also often present, but generally at a distance, remembered or stylized: the violence of Gone Home, for instance, is the emotional abuse of a family;
The violence in Gone Home is not explicitly physical, but more emotional violence. All the family members are disconnected from each other, and Sam seems to have trouble getting support from her parents. Although this type of violence is a bit more subtle, it is still very impactful.
But interactors can only act within the possibilities that have been established by the writing and programming
I agree with this statement, and I believe that the player doesn't have any of the power as an author. Even if a game is very interactive and the player is making a lot of their own choices that lead to different outcomes, those are all still things that were put into the game by the developers. Because of this, the player is still just following the rules set by the developers, but they have more autonomy in which path they want to take.
For instance, one convenience store robbery labyrinth follows the robber, the clerk, the owner, and the cop (who shoots the robber) back through the events leading up to the shootout and forward again into the moment of violence. Reading it we feel sympathy with all of them, and we see how they appeared to one another.
I think this way of presenting a story allows the reader to see multiple perspectives and makes things less black and white. If we only see the event happen through the eyes of one person, we may make assumptions that aren't true or valid because we don't know the full situation of the other characters. However, following multiple characters helps us understand the event and why it happened more clearly.