The published specs are low, but the developer has publicly admitted the game is heavy and that performance work is not finished. The minimum tier asks for Windows 7 / 8 / 8.1 / 10, a 3+ GHz processor, 8 GB RAM, a DirectX 11 or OpenGL 4.1 capable GPU, DirectX 11 and 8 GB of available space; the recommended tier asks for Windows 10, a 3+ GHz processor, 8 GB RAM, OpenGL ES 2.0 hardware and 8 GB of available space. Those tiers come from the developer's own 動作環境 section and from the Steam store entry, both linked below.
So the honest answer to "will it run on my PC" has two halves. The machine you have almost certainly clears the published bar, and the game is officially known to feel heavy on machines that clear it.
The published requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 7 / 8 / 8.1 / 10 | Windows 10 |
| Processor | 3+ GHz | 3+ GHz |
| Memory | 8 GB RAM | 8 GB RAM |
| Graphics | DirectX 11 or OpenGL 4.1 capable GPU | OpenGL ES 2.0 hardware |
| DirectX | DirectX 11 | — |
| Storage | 8 GB available space | 8 GB available space |
- The developer's 動作環境 (operating environment) section carries the same tiers.
- The Steam store entry lists them for the PC build.
If what you need is the display side rather than the spec list — Alt+Enter, the window reset and the keyboard control scheme — that is on the full screen and window fixes page.
The developer says the weight is still being worked on
The developer's own Ci-en post is direct about it: there are many bugs in the game; the weight of the maps, the battles and the game as a whole is being verified outside the developer's own PC; and players should wait for the improvement. The stated fix order is:
- Reduce the weight (重さの改善).
- Fix the bugs (バグの修正).
So performance is an open and officially acknowledged issue rather than a settled one, and it sits ahead of bug fixing in the developer's own order. Read that as "the game may get smoother before it gets more correct", not as "a patch is coming next week".
What the developer asked players to report
From the trial build, the developer collected these environment faults:
| Symptom | Why it is worth reporting |
|---|---|
| The NEW GAME button does not respond on some machines | It is machine-specific, so the machine matters |
| Choosing flee in a BOSS battle makes the controls unresponsive | It tells the developer which state breaks |
| The BGM does not play | Often a settings-file fault |
| The settings file sound is wrong | Same source as the BGM fault |
The instruction attached to them is simple: if the game runs heavy, tell the developer, because the report is what makes the verification possible outside their own machine.
What players reported on launch night
These are individual launch-night curator reports, not confirmed faults:
- The controls feel floaty and awkward to drive, with a crude interface.
- Possible crashes.
One of those reviewers ran a Ryzen 7 9700X with 31 GB of RAM and an RTX 5060, so a high-end machine does not close the question on its own.
Where to send a performance report
Send it to the developer's support form with the version, where it happened and what you saw. The version number is what makes the report usable, and the current data version with every past build is on the version history page.
There is no settings change the developer has published for the weight itself — they are collecting reports rather than shipping a workaround. The store's own summary on 2026-10-30 sat at Mostly Negative (24), with 33% of the 24 user reviews positive and 5 curators having reviewed the title, so a buyer is reading other people's experience before paying for a build whose performance is still being tuned.
Re-check this page
The specs, the review summary and the fix order are all window content, observed on 2026-10-30. The game data version moves with every patch, so re-read this page and the version history page before you buy.