Play Billions is an independent entertainment site built to make huge numbers feel tangible. It combines a fictional spending game with stable profiles, luxury-item pages and plain-language explainers.
The idea
Billionaire fortunes are discussed constantly but understood poorly. A number such as $100 billion is too large for ordinary intuition. Letting someone spend it—fictionally, repeatedly and with immediate feedback—turns magnitude into an experience.
Fun without pretending
The fantasy should feel generous; the claims should remain careful. Every real-person budget is a dated third-party estimate, every transaction is imaginary, and unusual luxury-item prices are scenarios rather than appraisals.
Developed by
Play Billions was designed and built by Simeon Onaola (via Sim3on) in collaboration with Simlyst. His other projects include Bricks and Yield and the Babbage Calculator, an effort to make complex calculations easier to understand.
Independent editorial
Play Billions is not affiliated with, endorsed by or sponsored by any person or company represented in the simulator. Advertising supports the service but does not purchase rankings or positive coverage.
Editorial responsibility and corrections
Play Billions editorial is responsible for the site’s wording, scenario classifications and source notes. Evidence links show what each reference does—and does not—support. If a claim or source appears wrong, Contact us with the page URL and supporting evidence.
Who it is for
The site is for casual players, teachers explaining orders of magnitude, journalists and researchers looking for stable context, and anyone wondering why buying a fleet of supercars barely dents some fortunes.