While later versions (such as v2.5) have expanded the game, version 2.3.1 established several core mechanics that are standard for the experience: Time & Navigation Systems

Based on available information, " Normal Life Under Feet -v2.3.1-

What is known is that mnbv has a fetishistic attention to floor textures. v2.3.1 includes 14 new types of carpet fibers, each with different collision physics. Linoleum tiles have grout lines that act as canyons. The dedication to the "under feet" perspective is unmatched.

"Normal Life Under Feet" serves as a digital theater for exploring themes of vulnerability. Through the lens of version 2.3.1, mnbv continues to refine a world where the most basic human needs are gamified, forcing the player to confront the reality of a life lived entirely under the influence of another's "feet." Normal Life Under Feet walkthrough（-1.10.1） - F95zone