Patch Notes Timeline Hub
Use this KOTAMON Patch Notes Timeline hub for current patch questions first. The latest startup-related official patch status is the September 6 Crash and Infinite Loading Fix. September 1 Steam Community Items and the planned free update are separate from this launch-fix status, and August 27 remains the latest indexed gameplay patch for card Level Up UI, Kotalion selling, cereal-box store disappearance, cosplay fixes and bag/beer counter persistence.
September 6 - Crash and Infinite Loading Fix
The September 6 official fix addressed crash and infinite loading cases. Use the Not Launching page for remaining edge cases, especially conflicting apps, overlays, save/config isolation, file verification and community workarounds that are not guaranteed official fixes.
September 1 - Steam Cards and Free Update Status
The September 1 Steam announcement is about Steam Community Items and Steam trading cards, not new in-game KOTAMON collectible cards. It also says a free update is being prepared with life improvements, new cards and cosplays, but those in-game additions are not live here and have no published release date.
Launch Fix Routing
Do not split Crash Fix or Infinite Loading into separate thin pages right now. The September 6 status belongs on the Not Launching fix page, while this Updates hub carries patch-note intent for players searching "kotamon patch".
KOTAMON Patch Intent
Use this Updates hub for "kotamon patch" questions first. Dated update pages explain individual official announcements, while fixes pages should stay focused on player troubleshooting instead of carrying general patch-note intent.
August 27 - Card Upgrades, Kotalion and Bug Fixes
Use the August 27 page when checking duplicate-card Level Up, yellow-border/arrow indicators, the green Level Up button, Kotalion selling status, cereal-box store disappearance, cosplay fixes and cross-save achievement counters.
August 21 — Balance, Saves and Achievements
Use the August 21 page when checking upgrade reset behavior, autosaves on new trash heaps, save/load crash reports, broken launch achievements and valuable-item recovery.
August 22 — Cereal Boxes and Collectibles
Use the August 22 page for current cereal box sourcing, Jenny’s $10,000 late-game shop price, mouse smoothing, FOV and improved figurine/cosplay case chances.
How This Hub Is Used
Each guide points back to the update that changes its assumptions: upgrades and fixes use August 21, cereal box frequency and collectible chance context use August 22, card Level Up and gameplay bug-fix context use August 27, and launch-status freshness uses September 6.
Next Data Work
The next content upgrade is to attach exact verified values for foil outcomes, location screenshots and repeated collectible routes when reliable evidence is available.