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Birth Year Battle vs Hidden Door

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

Birth Year Battle compared with Hidden Door
Detail Birth Year BattleHidden Door logo Hidden Door
What it doesNot given Interactive storytelling platform where you play, create and share stories in beloved worlds
StageNot given Established
FoundedNot given 2020
Based inNot given US
Pricing modelFreemium Freemium
PricingFree to join with free daily Power and recruitment rewards. Optional paid Power packs available outside recruitment phase. Free tier includes unlimited play across all worlds, character chat, and personal profile. Creator plan available for creating and sharing custom worlds (price not specified on pricing page).
Key features
  • Free daily Power that refreshes each day during battle
  • Attack rival years to reduce their health
  • Defend your year's health
  • Captain role to lead recruitment
  • Recruitment rewards for bringing new verified players
  • Elimination system where zero health means removal
  • Season Champion status with bonus Banked Power for next season
  • Optional paid Power packs for additional resources
  • Share team cards to recruit
  • Interactive fiction gameplay with branching narratives
  • Character chat and side conversations
  • Atlas world-building studio
  • Licensed worlds from film and publishing partners
  • Modifier cards for story customization
  • Private and public world sharing options
  • Creator API for building custom experiences
  • Hand-drawn art and human-written narrative beats
What makes it different
  • Birth year becomes your permanent team with no choice
  • Free to play with optional purchases, no mandatory spending
  • Captains get up to 100 new recruit rewards versus 10 for regular players
  • Personal stakes where friends become rivals based on birth year
  • Season progression with qualification phase before live battle
  • Protects creator IP and never trains models on partner content
  • Narrative world model ensures canon compliance across all player stories
  • Human-created narrative beats and art paired with specialized AI
  • Transmedia experience combining fanfiction, RPGs and social gameplay
  • Small tuned models that outperform larger general models on narrative tasks
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)19 −1 (down) since last check44 no change since last check
Trust Flow (Majestic)2219
Citation Flow (Majestic)1037
Referring domains (Majestic)54602

4 details filled in for both companies.

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