MECHANICA: A Ballad of the Rabbit and Mercury

Released Sep 2021

5029 AD, "Guillotine", the Japanese territory on Mercury, a city full of neon signs and drunks. You will explore the beautiful cyberpunk-style 2D world, play music to the residents of Mercury to gather intelligence, and finally achieve the goal of saving the world.

94% positive · 913 reviews

Done

All announced content has been released

High confidence

Done

All announced content has been released

High confidence

Where to buy

Steam Updated 11 Oct 2026 $19.99

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Evaluation

MECHANICA: A Ballad of the Rabbit and Mercury launched on September 17, 2021. The store description presents it as a complete, self-contained cyberpunk/time-loop mystery RPG with a fixed narrative. There are no DLC listings, no season passes, and no announcements of additional content for this game. The news posts associated with this game's store page are entirely publisher (OTAKU Plan) announcements promoting other, unrelated games in their catalog — titles like "Sakura Gozen," "BLACK SOULS II," "Succubus Survivors," and others. None of these posts reference MECHANICA or any updates, patches, or new content for it. The developer Loser/s has not communicated anything about post-launch content for MECHANICA. With no post-launch update history, no announced future content, and a store description consistent with a finished standalone product, MECHANICA launched as a complete game and remains so.

Evidence

Store description presents a complete, self-contained narrative RPG with no mention of DLC, updates, or future content plans.

description · Sep 17, 2021 source content shipped

medium

Most recent news post on this game's page promotes an entirely different OTAKU Plan title ('Lord Liberty Quest II'). No mention of MECHANICA updates.

news post · Mar 1, 2026 source ambiguous

low

Media

Details

Developer

Loser/s

Publisher

OTAKU Plan

Achievements

—

Platform

Windows

Controller

—

Steam Deck

Playable

Players

Single-player

Sexual Content Nudity Cyberpunk Time Management Visual Novel Puzzle JRPG Anime Indie Cute Time Travel Lore-Rich Story Rich Colorful Post-apocalyptic

About this game

《MECHANICA: A Ballad of the Rabbit and Mercury》is a Cyberpunk/time-loop/Mystery solving RPG developed by Japanese indie studio Loser/s，published by OTAKU Plan.

All characters depicted in this game are 18 years of age or older

■Cyberpunk

The background of the story is 5029 AD, "Guillotine", the Japanese territory on Mercury, a city full of neon signs and drunks.
Under the "sky cover" that shades the sun, "Guillotine" is a world that even the lights of stars can not reach.

■Time-loop

The whole world on Mercury will be destroyed every three days,
Under such a desperate situation, the protagonist and the mechanical maid with rabbit ears are struggling without giving up, looking for the truth of the incident.

■RPG×Music

This game is an RPG, but it has abandoned the battle system.
You need to obtain valuable information from the residents of the city by playing music to unlock the next plot.

■Mystery solving

You will explore the beautiful cyberpunk-style 2D world, play music to the residents of Mercury to gather intelligence, and finally achieve the goal of saving the world.

■Charismatic characters

Among the residents are linguists from other universes, sinners who have been deprived of their memories and feelings, and virtual artists who are full of emotions...