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[Update] EXTRA Difficulty and 8 New Characters

Touhou Defense Tale ~ AI Test in Touhou ~ · Community Announcements · July 17, 2026

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Hello, this is Shikigami Workshop.

First of all, we sincerely apologize for the delay and for keeping everyone waiting longer than expected.

This update introduces EXTRA, a new difficulty level above Lunatic. More time than originally anticipated was required to repeatedly test and adjust its late-game difficulty, special rules, character combinations, and overall balance.

Some of the visual and animation assets for the newly added characters were created with the assistance of AI. However, we encountered difficulties producing them in the exact form and quality we wanted. As a result, some of the new character assets may feel less polished than those of the existing characters, and we sincerely apologize for this.

We will continue to revise and improve these assets wherever possible through future updates.

Thank you once again for your patience. Full details of the update are listed below.


■ EXTRA Difficulty Added

A new higher difficulty, EXTRA, has been added.

EXTRA allows you to continue playing beyond the length of the existing difficulties, with special rules applied during the later waves.

EXTRA Late-Game Rules


■ 8 New Characters Added

New EX Characters

New PH Characters

Recipes, unique skills, Last Words, icons, effects, character BGM, sound effects, and multilingual tooltips have been added for each character.


■ Game Speed Function Added and Expanded


■ Difficulty and Character Balance Changes

Lunatic Difficulty Adjustment

PH Damage Dealer Rework

Damage based on the enemy’s current HP has been added to the main skills of the following PH characters:

The following rules apply to current-HP-based damage:


■ Economy and Upgrade Cost Changes


■ Quality-of-Life and Readability Improvements


■ BGM and Sound Improvements


■ Major Bug Fixes


Thank you sincerely to everyone who waited for this update.

There are still areas that need improvement, but we will continue reviewing player feedback and working on bugs, balance, and the new character assets.

Thank you.

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