Zypher — Retro Game

Unknown author · Just for Fun

Open in Chrome Web Store

Users

Avg rating

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Ratings

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Updated

Aug 17, 2026

Media

3 items

Description

Play the open-source Game Boy homebrew shooter Zypher offline in Chrome, with original gameplay and a flight drill. Zypher is an open-source 8-bit side-scrolling shooter created by PixelPhobicGames. Play the complete original game directly in a focused Chrome extension popup. The game and its runtime are packaged with the extension, so gameplay works offline after installation and requires no account or separate download. Features: - Complete original game as the main experience - Flight Drill, a lightweight local HTML5 training mode - Offline play after installation - Keyboard and compatible gamepad controls - No ads, analytics, tracking, or account Keyboard controls: - Arrow keys: move - Z: fire / A button - X: B button - Enter: Start - Shift: Select

History

30d 90d 1y all

rating_count is the Chrome Web Store ratings count, not a written-review count.

Details & SEO

SEO signals

Listing completeness signals

Title length
Characters in the extension name.
19
Description length
Characters in the listing description.
768
Media assets
Screenshots and videos on the listing.
3
Has promo video
Whether the listing includes at least one video.
No
Languages
Declared language locales.
1
Developer website
Listing exposes a developer website URL.
No
Contact email
Listing exposes a contact email.
Yes
Keyword in name
Case-insensitive substring match in the name.
—
Keyword in description
Case-insensitive substring match in the description.
—
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
—
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
1.8

These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.