Touhou Seirensen ~ Undefined Fantastic Object.
Developed by 上海アリス幻樂団 · Published by Mediascape Co., Ltd.
At a glance
Overview
An action, indie game by 上海アリス幻樂団, published by Mediascape Co., Ltd. — single-player.
Steam’s own one-line description: “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” — developer/publisher text via the Steam store page.
Reception & community
Review sentiment, ownership and peak-concurrent estimates via SteamSpy; tags are player-voted on Steam. Estimates change over time.
Features & modes
Derived from the gameplay modes and feature categories Steam lists for Touhou Seirensen ~ Undefined Fantastic Object..
| Feature | Supported |
|---|---|
| Single-player | Yes |
| Multiplayer | No |
| Co-op | No |
| Online co-op | No |
| PvP | No |
| Cross-platform multiplayer | No |
| Full controller support | No |
| Partial controller support | No |
| Steam Cloud saves | Yes |
| Steam Achievements | No |
System requirements (PC)
As published on the Steam store page. Requirements can change between updates.
Minimum
- OS *: Windows 7/8/10
- Processor: Core 2 Duo or faster
- Memory: 1024 MB RAM
- Graphics: Shader Model 2.0 compatible
- DirectX: Version 9.0c
- Storage: 450 MB available space
- Sound Card: DirectSound compatible
Recommended
- Memory: 2048 MB RAM
- Additional Notes: Controller recommended
Supported languages (1)
Touhou Seirensen ~ Undefined Fantastic Object. FAQ
Answered from the official Steam listing as of June 2026. Where something hasn't been announced, we say so rather than guess.
What kind of game is Touhou Seirensen ~ Undefined Fantastic Object.?
Steam classifies Touhou Seirensen ~ Undefined Fantastic Object. as a Action, Indie game, developed by 上海アリス幻樂団. 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
How much does Touhou Seirensen ~ Undefined Fantastic Object. cost?
As of June 2026, Steam lists Touhou Seirensen ~ Undefined Fantastic Object. at $14.99. Prices and regional pricing change — check the Steam page for the current figure.
Is Touhou Seirensen ~ Undefined Fantastic Object. single-player or multiplayer?
Steam lists these modes for Touhou Seirensen ~ Undefined Fantastic Object.: Single-player. It lists a single-player mode.
Is Touhou Seirensen ~ Undefined Fantastic Object. on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists Touhou Seirensen ~ Undefined Fantastic Object. for Windows. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is Touhou Seirensen ~ Undefined Fantastic Object. out yet?
Yes — Steam lists a release date of Jun 5, 2020.
What platforms is Touhou Seirensen ~ Undefined Fantastic Object. on?
Touhou Seirensen ~ Undefined Fantastic Object. is listed for Windows on the Steam (PC) store. Console availability isn't covered by Steam's PC store data — check the official channels.
Is Touhou Seirensen ~ Undefined Fantastic Object. single-player or multiplayer?
Steam lists these modes: Single-player.
How much does Touhou Seirensen ~ Undefined Fantastic Object. cost?
Steam lists it at $14.99.
Who made Touhou Seirensen ~ Undefined Fantastic Object.?
Touhou Seirensen ~ Undefined Fantastic Object. is developed by 上海アリス幻樂団 and published by Mediascape Co., Ltd..
Where to get Touhou Seirensen ~ Undefined Fantastic Object.
We don't sell games or track prices — this links to the official Steam store page.
View on Steam →Listing details from Valve's public Steam store data · official site. Not affiliated with Valve/Steam, Mediascape Co., Ltd..