Echo Simulator
Updates

What's New

Character additions, feature updates, and improvements

2026-08-21NEW

Added Build Data for Qingxiao

  • Added Qingxiao
2026-07-31

Added Build Data for Suisui

  • Added Suisui
2026-07-27

Major Documentation Update

  • Published the "Scoring Method" page, documenting every formula behind the scores
  • Published "Echo Build Data by Character" with recommended sets, main stats, and substat priorities for all 42 characters
  • Added an explainer on the home page covering how echo farming works and how scoring is derived
  • Added an "About This Site" page covering how the site is run, its data sources, and its disclaimers
  • Bonus time and save slots can now be unlocked by anyone, with no conditions attached
  • Corrected the rank thresholds listed in the guide to match the actual scoring logic
2026-07-24

Site Theme Switcher

  • Added a choice of two color themes, Blue and Gold
  • Refined button press feedback for a more responsive feel
2026-07-17

Score Distribution Chart

  • The result view now plots the score distribution of drops for that character as a histogram
  • Added a badge showing what percentile your score falls into
  • Exported result images now include the distribution chart as well
2026-07-12

Site Launched

  • Released the "Gacha" simulator for echo farming and score calculation
  • Released "Selection Supporter" to log your real pulls and get probability-based predictions
  • Added per-character substat evaluation and recommended main stats
  • Available in both Japanese and English