Simulators often employ a "Neko Atsume" or "Tamagotchi" style preference system:
Lyra took a breath. The slider clicked: . giantess feeding simulator
There is a primal fascination with "mega-fauna" and impossible proportions. Seeing a familiar world dwarfed by a single individual triggers a sense of awe and "macro" fascination. Simulators often employ a "Neko Atsume" or "Tamagotchi"