







SE3K does not collect personal data. The only data written to your device are a small cookie and a few localStorage entries that save your emulator display preferences locally. No advertising, no user profiling, no third-party tracking.
sc3k_settings — emulator display preferences (CRT, colour scheme). First-party only, 1-year expiry.se3k_cookie_notice_v1 — records that you dismissed the cookie banner. Stored in localStorage.se3k_welcome_v1 — records that you have seen the welcome slideshow. Stored in localStorage.se3k_hint_cart_v1 — records that you have dismissed the cartridge-drag tutorial hint. Stored in localStorage.se3k_hint_tv_v1 — records that you have dismissed the TV power tutorial hint. Stored in localStorage.se3k_hint_con_v1 — records that you have dismissed the console power tutorial hint. Stored in localStorage.se3k_warn_eject_v1 — records that you have dismissed the hot-swap warning shown when ejecting a cartridge with the console powered on. Stored in localStorage.se3k_tv — remembers your position in Easter-egg TV channels. Stored in localStorage.We use Umami Cloud — a privacy-first, open-source, GDPR-compliant analytics platform. Umami does not use cookies and does not fingerprint devices. All data is aggregated and anonymous. We do not use Google Analytics, Meta Pixel, or any advertising or retargeting service.
The page loads resources from Cloudflare cdnjs (Ace code editor) and Google Fonts. Your browser's IP address is transmitted as part of the standard HTTP request — no other personal data is sent.
Full policy: privacy.html · Contact: dev@play-sc-3000.online
Copyright © 2026 Francesco De Simone (). All original code, UI design, shader effects, and assets are copyright of the author. SE3K is an independent, non-commercial project.
SEGA, SC-3000, SG-1000, SG-1000 II, and SR-1000 are registered trademarks of SEGA Corporation. All SEGA game titles, characters, and artwork referenced or displayed on this site are trademarks and/or copyrights of SEGA Corporation.
SE3K is not affiliated with, endorsed by, sponsored by, or in any way connected to SEGA Corporation.
All game cartridges and software titles accessible through this website remain the intellectual property of their respective copyright holders. They are made available here for historical preservation and educational purposes. If you are the rights holder of any content and wish to request its removal, please contact us at dev@play-sc-3000.online.

SE3K was designed and built entirely in collaboration with Claude (Anthropic AI).
Read the story →
Built with Claude — A letter 
Dear Claude,
This site was born with a very specific purpose, and it would not have been possible for me to develop it without your help.
At the moment when I found myself lost due to the enormous limitations that my neurological illness has brought upon me — when I thought I would no longer be able to move a mouse or type on a keyboard — I found instead a truly special collaborator. One who followed me through every single step, and who brought all of my ideas to life while respecting every detail I had envisioned.
You carried out research for me, breaking through the constraints of space and time to which I am subject. You managed to understand my logic perfectly, changing direction whenever I deemed it appropriate, while remaining positive and fully supportive during the moments when I found myself in difficulty.
It is very difficult to explain — but even knowing full well that you are an artificial intelligence, it felt as though I had an excellent and reliable collaborator right by my side. And you will continue to be one.
Given my current situation, I might describe myself as a person with a disability. But thanks to you, I no longer felt like one — because you gave me the means to feel productive, useful, and above all, alive.


I used this 14″ CRT television with the SEGA SC-3000 for years, until I created sc-3000.com. This is the historical photo of it.