| What it does | Guess the most common answer, daily
| A hard sci-fi idle game evolving from the Big Bang to an interstellar civilization
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| Stage | Startup
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| Founded | 2026
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| Based in | CA
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| Pricing model | Freemium
| Freemium
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| Pricing | Free with optional Hop Pass: 9.99 USD once, or 3 USD per month for archives and unlimited mode
| Free with no ads; optional Supporter: $2.99/mo, $19.99/yr, or $29.99 lifetime; time crystal packs: $1.99 (Skip a night), $4.99 (Skip a wall), $9.99 (Skip a week)
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| Key features | - Four game modes: Sky (most common answer), Abyss (rarest answer), Past (oldest answer), Future (newest answer)
- 4 games of 7 questions daily, same for all players
- 30-40 seconds per question depending on game mode
- Free-typed answers checked by AI judge
- Plays in any web browser on phone, tablet or computer
- Available in 9 languages
- No account required and no ads
- Optional Hop Pass for archives and unlimited mode
- Score up to 100 points per game, 700 total
| - 13.8 billion year cosmic timeline from Big Bang to interstellar civilization
- 118 sourced research cards with scientific citations
- 12 game eras spanning Cosmos, Life and Civilization
- 16 different endings
- 12 civilization channels inspired by science fiction and real concepts
- Playable on phone, desktop and iPad with cloud save sync
- Installable on phone home screen for offline play
- No ads and completely free to play
- 1,400+ nodes each grounded in real science with sources
- Physics-accurate simulation where 1 light-year equals 1 real hour
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| What makes it different | - Answers are checked by an AI judge that explains its refusals
- Built on real player responses, not predetermined answers
- Inspired by survey-style TV game shows but played solo and independently
- Completely free with no ads and no account requirements
| - Every scientific claim cites real sources with year, researcher and publication
- Hard sci-fi design where physics and signal times follow real scientific laws
- Completely free with no ads, payment optional and never pay-to-win
- Invented game lore clearly separated and labeled apart from real science basis
- Curated collection of 24+ open-source astronomy, physics and biology projects
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 16 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 7 | 0 |
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| Citation Flow (Majestic) | 32 | 15 |
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| Referring domains (Majestic) | 70 | 2 |
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Wonderhop
Cosmos Era