4.1.60Co

4.1.60Co

Released Jul 2024

Cobalt 60 of April 1 is a magical text-based adventure game in which players play Anton Andreevich Sidorov, the protagonist of the Soviet Union in the 1960s. - My name is Anton, the name of the man who helped me is Anton, and the name of the man who tried to kill me is Anton, so who am I?

83% positive · 175 reviews
Not yet
Released, content planned but development status unclear
Low confidence
Content Planned
Development Uncertain
Not yet
Released, content planned but development status unclear
Low confidence
Content Planned
Development Uncertain

Where to buy

Steam $4.99
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Evaluation

4.1.60Co launched on July 5, 2024 as a completed visual novel with 160,000 words, 300+ CG images, and 24 endings. In the weeks following launch, the developer shipped several bug fix patches addressing issues with endings and UI elements. On September 19, 2024, the developer added a significant piece of new content — 47 multiple-choice questions tied to ending 24, including cheat codes for a planned sequel as a reward. In the same post, the developer noted they were actively working on a sequel and would not have much time to manage this game, but promised an optimization update sometime between late 2024 and early 2025. On December 21, 2024, the developer published an apology statement addressing past conduct toward players and clarifying the game's genre positioning. This was not a content update but a community relations post. Since then, updates have been limited to routine maintenance: a memory optimization patch in November 2024, a translation fix in January 2025, and minor patches on June 22, 2025 adding unskippable warnings and correcting typos. The optimization update that was promised for late 2024 or early 2025 was never explicitly confirmed as delivered or cancelled. The developer's stated focus on a sequel and the lack of any substantive communication about this game's development status since September 2024 makes it unclear whether that commitment was fulfilled or quietly abandoned.
Evidence
Developer states they are working on a sequel and have limited time for this game, but promises an optimization update from late 2024 to early 2025
news post · Sep 19, 2024 source content planned
high
47 multiple-choice questions added to ending 24; players who answer correctly receive cheat codes for a planned sequel
news post · Sep 19, 2024 source content shipped
high

Media

Details

Developer
Publisher
DEADDEVICE
Achievements
24
Platform
Windows
Controller
—
Steam Deck
Not rated
Players
Single-player

About this game

This is a thriller visual novel with a magical theme, there are marginalized groups involved such as lgbt as well as autistic people

!!! Please do not ignore the warnings within the adult content description!!!

Attention:

* If you do not need to use it off-site, it is recommended to turn off the cloud synchronization that comes with it to reduce unnecessary trouble.

* If you don't have the idea of playing the whole game in one breath, don't easily try the chaos mode, which will bring the worst gaming experience, of course, want to experience the best gaming experience here we recommend using the reading mode!

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How to tell if you're on the game's airwaves:

If you're halfway through the game and you've beaten the Milk Dud option, and still don't see any connection between the game's options and the plot, you can consider getting a refund (you shouldn't be more than 2 hours into the game at this point).

Don't ignore the warning here, it means that if you don't read this, you won't be able to read the rest of the game, and you won't be able to feel anything but the abruptness of the game.

This game is positioned as a niche experimental video game, the plot structure is different from the general visual novel, and is not suitable for general players.

Translated with (free version)

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Game related:

·This game has a text volume of 160000 words, rich content, and a winding plot.

·With over 300 exquisite color CG images, it brings an immersive experience.

·There are over 20 unique original tracks

·and 24 game endings

Main Plot:

In the Soviet Union in the 1960s, a talented young man, Anton Andreevich Sidorov, lived here. He loved science and alchemy. He might be a believer or a researcher, but he was so lonely that he planned a feast for himself. Only Anton Andreevich Sidorov was present...

True story: April 1, 1975, Moscow subway. According to the usual practice, a train that should have entered the station never appeared again. An entire train that was running disappeared without a trace. This was once an unsolved legend, but it was only a joke rumor on April 1.

operating system:

This game comes with two game modes, and players can choose their preferred mode to play at the beginning of the game:

Reading mode: There is no plot lock, you can choose any option you like to experience the most primitive feeling of the game, but you may need to take some notes, suitable for players who like to find their way through a bunch of clues, those who do not have the intention of playing the whole thing in one breath please do not choose this option, it will only bring the worst experience to yourself.

Chaos Mode: No storyline lock, you can freely choose your favorite options to experience the most primitive gaming experience, but you may need to make some notes, suitable for decryption players who like to find their own way through a pile of clues

Last evaluated Jun 20, 2026
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