Whitespace.
See who already built your idea — and the space they left open.

CLUSTER BROWSER-CARDS-GAME · 18 ENTRIES · EARLIEST ENTRY unknown

Browser memory card games

This cluster consists of browser-based games focused on card guessing and memory matching, including identifying sets and pairing cards from memory. The dated history before the index shows a sparse timeline with single entries in 2021, two in 2025, and two more in early 2026, indicating intermittent activity rather than a clear pattern. All three traction leaders (BigTwo, spot-it-quick-app, cartinha) report zero stars, so none has yet established a meaningful following.

Entry timeline

ENTRY TIMELINE

FEB 2021: 1MAR 2025: 1JUL 2025: 1APR 2026: 1JUN 2026: 1AUG 2026: 8SEP 2026: 4OCT 2026: 1
FEB 2021OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 6 ai-built · 2 hand-coded · 10 unlabelled

Operator · 7 hobby · 1 open source · 10 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 18 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01packstorm0★23 days—hobbyBrowser game for opening virtual sports card packs with collection completion and daily rewards.
  2. 026cardgame0★1 daylivehobbyOnline card game where players play a six-card game in the browser.
  3. 03spot-it-quick-app0★3 mo—ai-builtMobile app version of a fast-paced card matching game where players race to spot shared symbols.
  4. 04sheep_sheep2★1 yrabandonedliveai-builtA card matching game with a Harry Potter theme, where players match cards to progress.
  5. 05cartinha0★4 mo—hand-codedhobbyOnline card game for Sueca and Bisca played in the browser.
  6. 06trump-racing0★5 moliveai-builthobbyBrowser card-racing game where four card suits advance as cards are drawn and hidden checkpoint cards force racers backward.
  7. 07Dimensions0★5 yrabandonedlivehand-codedopen sourceDimensions is a pattern-matching card game where players find sets of three cards with matching or differing attributes.
  8. 08Lords of Origins: The Card Game0★unknownliveai-builtBrowser card game that immerses players in an epic fantasy adventure with strategic play.
  9. 09X-Squared Challenge Full0★unknownliveai-builthobbyMath card game where players drag integer and operator cards to form equations matching a target using PEMDAS rules.
  10. 10Vite + React0★unknownliveA multiplayer pirate-themed card game playable in the browser.
  11. 11SET0★unknownliveBrowser game where players identify sets of matching cards.
  12. 12402Cards0★unknownliveA card game web application.
  13. 13Pack Opening0★unknownliveai-builthobbyGame that simulates opening virtual card packs to reveal randomized collectible items.
  14. 14GuessTheCard0★unknownliveBrowser game where players guess playing cards.
  15. 15Mini Svelte apka + TF wykrywa kart do gry0★unknownlivehobbySmall web app that uses machine learning to detect playing cards for use in card games.
  16. 16ProjectMeowth0★unknownliveWeb game that presents magic card challenges to players.
  17. 17Match 'em all!0★unknownliveA Pokemon-themed matching game for players to match cards and have fun.
  18. 18Memory Card Game0★unknownliveBrowser game that challenges players to match pairs of cards from memory.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.