PCGame

MECHANICA: A Ballad of the Rabbit and Mercury

Cyberpunk mystery RPG built around music and a three-day loop

Loser/s · Published by OTAKU Plan · Released Sep 17, 2021

AdventureIndieRPG

Reviews
Very Positive
94% of 879
Recent reviews
Not enough recent
Players
1
daily peak, Oct 28, 2026
Steam Deck
Playable
Last update on Steam
4 years ago
Jul 27, 2022
Minimum PC
DirectX 9 GPU
4 GB RAM · 2 GB disk
Full requirements

What is MECHANICA: A Ballad of the Rabbit and Mercury?

A single-player, 2D mystery RPG without combat, set in Guillotine, a city on Mercury in 5029. Across repeating three-day loops, you explore the city and play music for residents to gather information and advance the story, working with a rabbit-eared mechanical maid to prevent Mercury’s destruction.

For you if...

  • +you enjoy visual novel storytelling with time management

Not for you if...

  • −you want an RPG focused on battles
  • −you prefer games without sexual content or nudity

What players say

94% of 879 reviews are positive

Players praise the mystery, music, artwork, and characters. The recurring complaint is the English translation, with players reporting awkward wording and typos; later reviews continue to criticize its quality.

Screenshots and trailer

MECHANICA: A Ballad of the Rabbit and Mercury screenshot 1

MECHANICA: A Ballad of the Rabbit and Mercury system requirements

Minimum: DirectX 9 GPU, 4 GB RAM, 2 GB of disk space.

As published by the developer.

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Minimum

OS
7 / 8 / 8.1 / 10
Processor
2+ GHz Processor
Graphics
DirectX 9/OpenGL 4.1 capable GPU
Memory
4 GB RAM
Storage
2 GB available space
DirectX
Version 9.0

Recommended

OS
8 / 8.1 / 10
Processor
3+ GHz Processor
Graphics
OpenGL ES 2.0 hardware driver support required for WebGL acceleration. (AMD Catalyst 10.9, nVidia 358.50)
Memory
8 GB RAM
Storage
4 GB available space
DirectX
Version 9.0

Does MECHANICA: A Ballad of the Rabbit and Mercury have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Does MECHANICA: A Ballad of the Rabbit and Mercury run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • Default controller config not fully functional
  • Sometimes shows mouse, keyboard or non-Deck controller icons
  • Some in-game text is small and may be hard to read
  • Default graphics settings perform well on Steam Deck
  • External controllers are not supported for the primary player

PC version details

DRM
None declared on Steam
Controller
Keyboard and mouse
Platforms
Windows
Steam features
Cloud saves, Family Sharing, Trading cards
Languages
Text only: Japanese, English, Simplified Chinese.

Does MECHANICA: A Ballad of the Rabbit and Mercury use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam

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