Changelog

What's new, changed, and fixed on PlayMemorize

April 15, 2026

new Unit Converter game at /convert with 11 categories (Length, Weight, Volume, Temperature, Area, Speed, Time, Digital Storage, Pressure, Energy, Fuel Economy). Includes both a converter tool and a quiz-style game mode.
new Ghost and Polyglot blog articles in 25 languages with full color-box styling and memory technique guides.
new /about page with author photo, bio, game grid, and design principles.
new /accessibility page detailing WCAG compliance and accessibility features.
new /changelog page (this page) for tracking all site updates.
new FAQ sections on all game pages with FAQPage schema for Google rich snippets.
new Author bylines on all blog posts with photo, name linking to /about, and localized dates.
new GA4 event tracking added to Major System and Flashcard components.

improve Enhanced schema.org markup: richer Person (author image, jobTitle, sameAs), Organization (logo, founder, contactPoint), and FAQPage schemas.
improve Footer now includes About link, LinkedIn/X social links, and copyright notice.
improve Converter game: mobile-first stacked layout, category dropdown, full unit names instead of abbreviations.
improve No more scientific notation anywhere. Large/small numbers displayed in full decimal with commas.
improve No emdashes anywhere on the site. Replaced with middots for cleaner display.
improve "About PlayMemorize" blog post updated with all 8 current games.

fix Distractor generation for extreme values (electronvolts, very small/large numbers) now stays in the correct order of magnitude.
fix Zero-answer edge case in converter game no longer causes infinite loop.

new Speed Math game at /math with configurable operations, number ranges, and difficulty.
new Twemoji Ghost game (Kim's Game) at /ghost with 2-40 emoji grids, adjustable tempo, and smart distractors.
new Twemoji Polyglot game at /polyglot supporting 14 languages with emoji-word association.
new "Why I Built PlayMemorize" article published in 25 languages.
new Memory blog articles with cognitive science techniques in 25 languages.
new Pi blog posts for all 24 non-English languages.
new Unified blog at /blog aggregating articles from all games.
new Offline mode with service worker, install prompt, and PWA manifest.
new GA4 event tracking for Memory, Color, Ghost, Polyglot, and Math games.
new 24-color mode for Color Memory game.
new Auto-detect browser language and set locale defaults.

improve SEO: canonical URLs, schema.org markup, meta descriptions, and sitemap across all pages.
improve Consistent schema across all localized game pages.
improve Uniform header design across all games with dark menu background.
improve In-game settings collapsible on all games to reduce visual clutter.
improve Ghost: preload all emoji SVGs before showing grid to prevent flicker.
improve Polyglot: all languages loaded from emoji data, bigger emojis, portrait-friendly grids.
improve SEO "About this page" sections added to all game pages.