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Cosmos Era vs Purrminal

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Cosmos Era compared with Purrminal
DetailCosmos Era logo Cosmos EraPurrminal logo Purrminal
What it doesA hard sci-fi idle game evolving from the Big Bang to an interstellar civilization Desktop pets on your Windows taskbar that your work feeds, cares for and unlocks
StageNot given Startup
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree 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) Free: all 16 pets earned by playing, focus timer, daily quests, pet care, Friends groups, Claude Code/OpenCode/Pi pets. Premium: $3.99/month or $29.99/year (save 37% annually). Premium adds 50% more coins, one extra daily quest, reply to coding agent from pet, custom photo pet, and start Friends gro
Key features
  • 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
  • 16 collectible pets to unlock by earning coins
  • Pomodoro-style focus timer with customizable rounds
  • Pet care system: feeding, water, play, and baths
  • Claude Code, OpenCode and Pi agent integration
  • Daily quests and focus streaks
  • Friends groups with weekly leaderboards
  • Local save: no tracking or cloud uploads
  • Premium subscription with 50% more coins
What makes it different
  • 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
  • Work earns coins that feed and unlock pets while you focus
  • Integrates with AI coding agents to show what they are doing
  • All pets unlockable for free, no loot boxes or pay-to-win
  • Data stays local on your PC with no tracking
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)1512
Referring domains (Majestic)21

5 details filled in for both companies.

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