An auto-battle roguelike defense set in Gensokyo. Field up to five Touhou heroines, choose where each one stands, and the danmaku flies on its own. Every level-up pauses the fight for three cards that reshape your build. Beat a boss and she joins you. Forty stages.
Read the full disclosureQuoted from the Steam store page
Generative AI technology is used in a supplementary capacity during the creation of some user interface assets.
Any such assets are replaced through our production pipeline by our art and development teams, ensuring they meet our quality standards and creative direction.
CorePartialAssistPlaceholder
Followers
Growth
Steam followers
5 now · Daily snapshot of public Steam data
Collecting dataGameDB started tracking this game on Sep 23, 2026. The chart fills in as daily snapshots arrive; the latest reading is 5.
Why it’s here: 5 Steam followers. Upcoming games rank by Steam follower growth over the last day and week, weighed against the audience they already have. Released and upcoming games are charted separately; estimates and stars are never mixed in.
Made by
Developer
ER
Erosion
Developer on Steam
Is this your game?
This page is built automatically from public Steam data and refreshed several times a day. Claim it to tell the story behind the game — no claim is needed to stay listed.
A Verified badge once you confirm how the game uses AI
Story, timeline and milestones
How you used AI, in your own words
Shares AI uses or genres with Touhou Gensokyo Defense