Fossilized Wonders

Touhou Kinjoukyou ~ Fossilized Wonders is a bullet hell video game developed by Team Shanghai Alice. It is the 20th official game and 33rd overall of the Touhou Project series.

It was announced on April 12, 2025; received its demo release on May 5, 2025, at Reitaisai 22; and released on August 17, 2025, at Comiket 106 alongside a Steam release.

Gameplay

Fossilized Wonders is a vertically scrolling danmaku video game where various enemies fire projectiles the player must dodge and fire bullets back at the enemies with. The game's life system allows multiple hits before a game over, and its Spell Card system has cards releasing powerful attacks limited in quantity. Defeating enemies increases the player's score, where there is an integrated high score system, and can drop power-ups such as extra lives and bombs. At the end of each stage is a boss with significantly more health the player must fight before advancing to the next stage.

Fossilized Wonders introduces a new mechanic to the series, where the playable character combines various different types of Stones that affect their shot type.

Characters

Similar to older entries in the series, only Reimu Hakurei and Marisa Kirisame are playable.

Playable characters

Boss characters

Development

ZUN planned on making Fossilized Wonders a traditional bullet hell shooter, where the only playable characters are Reimu and Marisa.

ZUN has used generative artificial intelligence for varying background elements for Fossilized Wonders, a decision Touhou fans have criticized. ZUN later confirmed the use of AI in Fossilized Wonders, saying that he wanted to "reduce it to nothing more than a tool" and confirming that he used Adobe Firefly. ZUN has also said that generative AI is relevant to the theme of Fossilized Wonders.

Reception

During the "Dengeki Indie Game Awards 2026" held by Dengeki Online, the game was voted as the second best shooting game.