PC $1.99 Region US
Games Adventure 31st prototype
Content rating unavailable
Adventure · STEAM STREET

31st prototype

31st prototype
Content rating unavailable
Windows
Positive · 100% of 17
DeveloperSTEAM STREET
Wait Chip's verdict · US updated yesterday

Good game, but it sits 100% of the way from its all-time low to full price. It drops harder in seasonal sales. Patience pays.

Why this verdict
Price position between all-time low and full price 100%
All-time low $1.59 · 9d ago
Player reviews 100% positive of 17
Quality score 100/100 · small sample
Value score 0/100

Offers

Accepted regional prices from official stores

Official stores (1)
steam
checked yesterday Best price
steam, Official, $1.99
$1.99 Buy at steam
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Packs and bundles (1)

Multi-item packages that include this game

About this game

What this game is, in the developer's words

This is a steampunk puzzle game. player use ↑↓←→to control the robot,press Z/ENTER/SPACE to explore the map, and press X/ESC to save game The frame is sketch style, let you immerse the retro atomospher.

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.

Media

Trailers and screenshots straight from the store page

31st prototype screenshot 1
31st prototype screenshot 2
31st prototype screenshot 3
31st prototype screenshot 4
31st prototype screenshot 5

Latest news

Recent updates from the game's own feeds

Price intelligence

Accepted price history and the lows that matter

Historical lows
All-time low ATL $1.59 2026-07-03
3-month low $1.59
12-month low $1.59
Current $1.99
Price events From the accepted price history · updates automatically
Jul 9, 2026
Sale ended · back to $1.99
Jul 3, 2026
New all-time low $1.59

31st prototype price history and best deals

31st prototype for PC currently sells from $1.99 at authorized stores. Its all-time low is $1.59, set on 2026-07-03.

Frequently asked questions

Answered from this game's own price and edition data

Should I buy 31st prototype now or wait?
Our verdict is wait. At 100% of the way to full price, it usually drops harder in seasonal sales, so patience tends to pay.
Is $1.99 a good price for 31st prototype?
$1.99 sits 100% of the way from the all-time low of $1.59 to the full price. It has been cheaper before, so there is room to wait.
Where can I buy 31st prototype?
31st prototype is tracked at steam. We only list authorized stores here and always link out with a clean outbound link.
Scores
Steam reviews Positive · 100%
100% positive of 17
Media (5)
Tech
Requirements
System requirements platform
Minimum
Minimum:
  • OS *: Microsoft® Windows® 7/8/8.1/10 (32bit/64bit)
  • Processor: Intel Core2 Duo or better
  • Memory: 4 GB RAM
  • Graphics: OpenGL 4.1 capable GPU
  • DirectX: Version 9.0
  • Storage: 300 MB available space
  • Sound Card: all OK
  • Additional Notes: Need run STEAM
Facts
DeveloperSTEAM STREET
PublisherSTEAM STREET
GenresAdventure
ModesSingle-player
Links
Ratings
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