So What Can I Even Do?

At the beginning, not a whole lot! Activities and build features unlock by advancing in eras, researching technologies, and completing buildings and wonders. See the following pages for overviews by category:
 * Architecture
 * Education
 * Habitation
 * Recreation
 * Sanitation
 * Socialization
 * Sustenance
 * Miscellaneous

Banned Activities
The following activities and features are straight-out banned for the sake of this challenge:
 * Vampires and all vampire-related aspirations and lot traits.
 * The use of alien powers other than disguises, though alien and crossbreed sims are permitted.
 * Residing in apartments.