They weren't "death games" as much as. . . mm.

[how did Rise put it. . .?]

Rise-san said that the guests at her party started killing because they believed it was the best course of action. They received a lot of announcements that provided incentive for killing, though theirs were different than ours.

I actually talked to Plum about those announcements.

[oh. . .?]

And I think I may have an idea of where they're coming from.