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Tamagotchi

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About

A pocket creature with real stakes: its fed and happy meters drain by the actual clock, even while you're away. Feed it, play with it, keep it alive. Forget it for three days and it dies — for good, until you start a new egg.

How it works

State (hunger, happiness, birth + last-seen timestamps) lives in localStorage under kaspirius:tamagotchi:state. On each load and every second, the meters decay by the elapsed real time; too long untended flips a permanent “dead” flag. No backend.

Metadata
title
Tamagotchi
description
A little creature that gets hungry and sad on real time — feed it, play with it, and it survives. Neglect it for three days and it dies. Kept in your browser.
canonical
https://kaspirius.com/tamagotchi
updated
Last updated
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Structured data (JSON-LD)
TechArticle

Same as Article, flagged as technical/developer reference material.

{
  "@context": "https://schema.org",
  "@type": "TechArticle",
  "headline": "Tamagotchi — toy",
  "description": "A little creature that gets hungry and sad on real time — feed it, play with it, and it survives. Neglect it for three days and it dies. Kept in your browser.",
  "url": "https://kaspirius.com/tamagotchi",
  "mainEntityOfPage": {
    "@type": "WebPage",
    "@id": "https://kaspirius.com/tamagotchi"
  },
  "datePublished": "2026-06-18",
  "dateModified": "2026-06-18",
  "author": {
    "@type": "Person",
    "name": "kaspirius",
    "url": "https://kaspirius.com"
  },
  "publisher": {
    "@type": "Organization",
    "name": "kaspirius",
    "url": "https://kaspirius.com"
  }
}
↖ kaspirius