What is the cheapest place to buy 31st prototype?

Steam at $1.99 — an official store, and the lowest of the 1 store we compare for your region. Prices update through the day, so check the table above before buying.

Is 31st prototype free?

No — 31st prototype is a paid game. The cheapest we can find it is $1.99.

Has 31st prototype ever been cheaper?

Yes — the lowest we have tracked since we started tracking it in June 2026 is $1.59. It is $1.99 today.

Can I play 31st prototype on Mac?

Not natively — Steam lists no macOS version of 31st prototype. Mac players would need a cloud gaming service or a Windows compatibility layer.

Is 31st prototype multiplayer?

No — Steam lists 31st prototype as single-player only.

Is 31st prototype on PC Game Pass?

No — 31st prototype is not on PC Game Pass right now. The best price to buy it right now is $1.99.

31st prototype

Name: 31st prototype
Brand: STEAM STREET
Availability: InStock

STEAM STREET · May 5, 2021 · Steampunk, Puzzle, Hand-drawn, Old School, Robots

Buy 31st prototype from Steam at $1.99 — the cheapest of 1 store we compare.

Puzzle deals

Positive100% · 17

Best price

$1.99

lowest tracked $1.59

Buy at Steam

Prices last checked 1 Aug 2026, 14:14 UTC

More games under $5 →More Steam deals →

Where to buy 31st prototype — official stores

Steam

Standard Edition · Steam

$1.99

Buy

31st prototype price by region

31st prototype costs $1.39 in Georgia (USD), £1.79 in the United Kingdom, $1.99 in the United States, €2.09 in Europe (EUR), CA$2.39 in Canada, A$2.80 in Australia, NZ$3.19 in New Zealand, R$7.95 in Brazil and zł8.35 in Poland right now.

Cheapest 31st prototype offer in each region, in local currency
Region	Best price	Official store	Key shop	Stores
Georgia (USD)	$1.39	$1.39	—	1
United Kingdom	£1.79	£1.79	—	1
United Statesyour region	$1.99	$1.99	—	1
Europe (EUR)	€2.09	€2.09	—	1
Canada	CA$2.39	CA$2.39	—	1
Australia	A$2.80	A$2.80	—	1
New Zealand	NZ$3.19	NZ$3.19	—	1
Brazil	R$7.95	R$7.95	—	1
Poland	zł8.35	zł8.35	—	1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About 31st prototype

✦ AI summary

Play as an amnesiac robot exploring a mysterious steampunk mansion to piece together fragmented memories and uncover dark secrets in this relaxing narrative adventure. Blending puzzle-solving with text exploration and hand-crafted visuals, it's a 30-minute story-driven experience with an atmospheric soundtrack and a deeply personal artistic vision from solo creator HAIM.

ABOUT STORY
This is a story about one robot who found back her memory in the empty house. She awake on the storm night, but forgot all things, along with the exploration, she found the truth...
It not only a decrypt game, but also a text adventure game.

ABOUT FEATURE
★steampunk theme
★interesting map and personal style illustration
★thought provoking story
★sounds good music (all by real record, not export by midi)
★all the source materials are original by myself
★not hard, relaxed to enjoy it
30minutes left play time

POSTSCRIPT
I'm the author HAIM
The all content of this game is made by myself
The playing time about this game is half an hour left, and not very hard, you can relaxed clear it.
The story was intend to draw a comic, but set aside by some reason.
I very want to make a game in this year, so restart this project.
On the game-making process, i adjusted a lot of detail, so the last version is different from originally story.
The central character robot is originate from my illustration series STEAM STREET .
The music made by 'balloon house' who is my another pen name，
I wish you can enjoy this game.

31st prototype — game info

Platforms: Windows
Player modes: Single-player
PC Game Pass: Not included

Price alert

Get notified the moment the price hits your target.

31st prototype price history

31st prototype is $1.99 at Steam right now, compared across 1 store. The lowest we have tracked is $1.59.

2026-06-18low $1.59 · now $1.99

31st prototype price changes · tracked since 18 Jun 2026
Date	Price	Store
9 Jul 2026	$1.99 ▲	—
25 Jun 2026	$1.59 ▼	—
18 Jun 2026	$1.99	—

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A live price and history chart for 31st prototype, updating on its own. Free to use anywhere — it carries a link back here and needs nothing else.

31st prototype — questions & answers

What is the cheapest place to buy 31st prototype?: Steam at $1.99 — an official store, and the lowest of the 1 store we compare for your region. Prices update through the day, so check the table above before buying.
Is 31st prototype free?: No — 31st prototype is a paid game. The cheapest we can find it is $1.99.
Has 31st prototype ever been cheaper?: Yes — the lowest we have tracked since we started tracking it in June 2026 is $1.59. It is $1.99 today.
Can I play 31st prototype on Mac?: Not natively — Steam lists no macOS version of 31st prototype. Mac players would need a cloud gaming service or a Windows compatibility layer.
Is 31st prototype multiplayer?: No — Steam lists 31st prototype as single-player only.
Is 31st prototype on PC Game Pass?: No — 31st prototype is not on PC Game Pass right now. The best price to buy it right now is $1.99.

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended May 5, 2021

my full play through here if you get stuck!: https://youtu.be/7MMReKDIGYA Rating: 9 out of 10 for the price Review: The story is really beautiful it's not anything super innovative or ground breaking, but it was really enjoyable. I did not sign up for the feels trip though even with it's beautiful scenery lol. Absolutely recommend this it's a bit short which the creator lets you know, but the art work is A+ and you can really feel the love that went into the game. I only ran into one glitch where a cutscene got stuck replaying through the game fixed it though.

2 found this helpful

Recommended Sep 17, 2021

Neat little game, loved the sketch sytle.

1 found this helpful

Recommended Jun 22, 2021

Though the game was really short, I really appreciated playing it. The story, the puzzles and the art were really great and entertaining. I was invested in it and it was really fun. The downsides were the wonky translations and the fact that I had a hard time to click into certain places (which was a minor issue) but besides that, it was all good!

1 found this helpful

Recommended May 14, 2026

Mixed feelings, art was nice, story was only okay, puzzles weren't good

Recommended Dec 31, 2025

This is a really short and easy adventure game (took me about 30-40 minutes) with wonderful hand-drawn art and lovely music. Some interactive points are really small (and there are not really any visual hints), so I thought I missed something, but I had to just position myself slightly different. The translation (English) is wonky, but the text is easy to follow nonetheless. I found this older project after playing P.I.S. and love playing small games like this and hope to see more from the creator in the future!

Recommended Aug 20, 2024

cute and bittersweet short linear story

Community reviews

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