Quote from https://en.wikipedia.org/wiki/Everything_(video_game) :
Everything is a simulation game where the player has the ability to explore a procedurally generated universe and control various objects within it. The player starts as one of several possible creatures and has the ability to move around. Initially, the player can shift their control to any creature or object smaller than the current one they occupy; this shifts the scale of the game to reflect this. Eventually the player can only shift into smaller and smaller parts of matter, down to the sub-atomic level, after which the game then allows the player to shift to larger objects as well. From this point, the player can take forms that include landmasses, planets, and whole star systems. As the player moves and shifts forms, they will find other creatures or objects speaking to them. The game uses a number of levels of "existence", representing different length scales, which the player can move between as they shift into different objects.
When a player occupies a form for the first time, that object is added to an in-game encyclopedia catalogued by type. At any time, the player can shift to any form they have already previously inhabited, though this form will be scaled appropriately to the current scale the player is at: taking the form of a planet in the middle of a street will produce a miniature-sized planet. A goal of the game is to complete this encyclopedia and occupy all objects available in Everything. Throughout the game, quotes from philosopher Alan Watts are given to the player. If the player lets the game sit idle, the game will cycle through various scenes on its own.
Once the player has completed the game through completing the encyclopedia, they can start in a New Game Plus-type mode, but here starting from any random object in the game.
More from Alan Watts : https://www.postbelief.org/alan-watts-out-of-your-mind/