Touhou Seirensen ~ Undefined Fantastic Object.
by 上海アリス幻樂団·published by Mediascape Co., Ltd.
Steam · Very Positive
Steam Facts
Data current as of Apr 26, 2026. We re-crawl reviews and metadata every 14 days.
Steam Sentiment93
Very Positive
This puts the game in the top 30% of all reviewed games on Steam.
Quick Stats
Reviews
157en
407 total (all languages)
Current as of Apr 26, 2026
Released
Jun 5, 2020
Price
$14.99
Velocity
0.1/day
Slowing
Metadata current as of Apr 26, 2026 · Source: Steam
Market Reach
Not enough reviews yet to estimate (407/500).
About
アレは何だ？ 鳥か？ 妖精か？ 謎に満ちた未確認幻想物体が、君を未知の世界に誘う！ ファンタスティックでレトロな弾幕シューティング幻想
Sentiment History
Sentiment over time
Playtime Sentiment
Sentiment by time invested
· 157 post-launch reviews?
0h
90%29 rev
<2h
93%15 rev
2-10h
93%57 rev
10-50h
94%47 rev
50-200h
100%8 rev
200h+
100%1 rev
Sentiment is consistent across all playtime ranges — players feel the same way whether they've played 2 hours or 200.
Competitive Benchmark
Compared to 444 similar games in the Action genre released in 2020.
Sentiment vs. similar gamesTop 18%
Popularity vs. similar gamesTop 45%
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