Rocksday
Daily rock & mineral guessing game — free, no signup
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Read the full description
Guess the rock, mineral or gem of the day from a zoomed-in photo in six tries. Wrong guesses zoom out and unlock scientific clues. Free browser game with a 300+ specimen library, compare pages, and archive. No account needed.
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More like this: all 27 launches in browser-based educational games →
PH · launched Oct 25, 2026 · 1 upvote (top 67%)
- Media & entertainment
- B2C
- Not AI
- Hobby / open-source project
- Education
- Games
- Side Project
Similar launches
See all 206 similar launches →Could you build this?
Yes A daily guessing game with zoomed photos, progressive clues, and an archive is a simple browser app; the main work is curating the specimen content.
Competitors
Other products that read as similar to this one : 206 launches clear the similarity bar, closest 8 shown.
Attention rank: #79 of 207 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 288 days after the earliest competitor.
- Rock ID: Crystal Identifier · ph · 2026-10-08 · 1 upvotes · similarity 0.57
- Best Guess · ph · 2026-10-07 · 1 upvotes · similarity 0.47
- Read the World · ph · 2026-10-30 · 2 upvotes · similarity 0.46
- LandmarkGuessr · ph · 2026-10-12 · 1 upvotes · similarity 0.46
- GemSize · ph · 2026-09-29 · 2 upvotes · similarity 0.46
- Birthstone Meaning · ph · 2026-09-10 · 2 upvotes · similarity 0.46
- Birthstone Calculator · ph · 2026-09-22 · 3 upvotes · similarity 0.45
- Dayzle · ph · 2026-10-13 · 1 upvotes · similarity 0.44
Other launches for this product
- No other launches for this product.