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Knocking up my brother's wife: My sister-in-law can't resist my seed

Knocking up my brother's wife: My sister-in-law can't resist my seed

Appetite · Tensei Games · Dec 15, 2022
Adventure
Delayed observation Observed
0
Last tracked
1
All-time peak
n/a
Δ 24h
Player count last observed
Live player data is temporarily unavailable; historical values remain visible for context.

Knocking up my brother's wife: My sister-in-law can't resist my seed - Steam Charts & Historical Stats

Golden boy Seiichi has never failed in anything before -- until now, at least. Explore historical player activity and pricing for Knocking up my brother's wife: My sister-in-law can't resist my seed. Player-count data was last observed Sep 26, 2026.

Price
$6.99
Genre
Adventure
Developer
Appetite

Knocking up my brother's wife: My sister-in-law can't resist my seed player count and price summary

Current players
Unavailable
All-time peak
1
24-hour player change
Unavailable
Current US price
$6.99

Player count last observed . Values marked unavailable are not estimated.

All-Time Peak

1
Jul 2026

Estimated Owners

0 .. 20,000
Estimate via SteamSpy

Game Insights

Buy Verdict

Watch — $6.99.

Decent deal at 50% off, but might drop further. Watch for better opportunities.

▲ ~4 days until next sale

Value Score

Great Value — 100th percentile.

Price-to-player ratio ranks in the 100th percentile. Priced as Market at $13.99.

▲ Market pricing tier

Genre Benchmarks

Player Count Top 0%
Value Ratio Top 0%
Player count

Activity Heatmap

UTC+0 (Your Timezone)
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Avg Activity
2
Active Hours
75%
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Price History

Lowest Price
$6.99
Jul 2026 across all regions
Current Price
$6.99
US region
Price history across regions (last 30 days)

System Requirements

Platform Support
Windows
Windows Requirements
Minimum:
Minimum:
  • OS: Windows 10
  • Processor: Intel Celeron (2010) or higher
  • Memory: 4 GB RAM
  • Graphics: 1280*720 Full Color
  • DirectX: Version 9.0
  • Storage: 1 GB available space
  • Sound Card: Sound card compatible with DirectSound
Recommended:
Recommended:
  • OS: Windows 10
  • Processor: Intel Core i series or higher
  • Memory: 8 GB RAM
  • Graphics: 1280*720 Full Color
  • DirectX: Version 9.0
  • Storage: 1 GB available space
  • Sound Card: Sound card compatible with DirectSound
Pricing
Paid Game
$13.99 (USD)

Additional Information

Categories
Single-player Family Sharing
Supported Languages
English

Current Pricing

💰
$13.99
Regular Price
Historical low: $6.99 (Jul 2026)

Additional Information

🇧🇷 DEJUS Rating
18
Brazilian rating
🇩🇪 Steam Germany
BANNED
German classification
🆘 Support
⚠️ Content Warning
This game contains violence and sexual scenes. Within those, there are also scenes that are possible to be interpreted as sexual violence or non-consensual sex.
🎁 Purchase Options
1
package options

Developer Analytics

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About This Game

Golden boy Seiichi has never failed in anything before -- until now, at least. After experiencing failure for the first time at this age, he might not be able to recover. That's when Ryuji makes a suggestion to Risa: "I'll get you pregnant in place of my brother."

Detailed Description

《Story》


Risa has been friends with her neighbors, the Takeuchi brothers, for a long time.
Naturally, they were both into her.

Eventually, Risa married Seiichi, the older one of the two brothers.
The younger brother, Ryuji, acted like he was happy for his brother, but a massive inferiority complex was simmering inside him.

One day, Ryuji hears from Risa that, due to Seiichi being infertile, they are unable to have children.
Until then, Seiichi, the golden child, had never experienced any setbacks in life.
If his first taste of failure came at this age, there's a chance he'd never be able to recover from it.

Then, Ryuji makes a suggestion to Risa.

"I'll get you pregnant in place of my brother."

《Characters》


Risa Takeuchi (VA: Hina Shinomiya)
A childhood friend of the Takeuchi brothers.
She's in a loving marriage with Seiichi, but she still acts like an adoring older sister to Ryuji just like when they were kids.
She's a caring and considerate person who gives her all for others.
She's a little awkward around men, and she's only familiar with vanilla sex.
She's worried about not being able to have children.

Seiichi Takeuchi
Ryuji's older brother.
No matter what he does, he does it perfectly.
He's also a genuinely nice guy who's protective of his younger brother Ryuji without looking down on him.

Ryuji Takeuchi
The protagonist.
He's had a crush on Risa for a long time.
His feelings toward her haven't changed even after she married his brother.
He has a lot of unresolved feelings surrounding his perfect older brother.

*Before purchasing this product, we highly recommend that you play the demo [Japanese only] to check if the game works properly on your computer in your region.
*Appetite is the licensor of this game. For inquiries about the product, please contact Tensei Games.

《Contents》

  • 15 separate CGs (Over 60 CGs in total!)
  • 15 H-scenes
  • Japanese voice acting for the main female character

《Features》

  • You can have the same experience as the protagonist.
  • Two endings
  • CG Gallery Mode
  • Scene Replay Mode

Frequently Asked Questions

Is Knocking up my brother's wife: My sister-in-law can't resist my seed worth buying right now?
Watch — $6.99. Decent deal at 50% off, but might drop further. Watch for better opportunities.
When does Knocking up my brother's wife: My sister-in-law can't resist my seed go on sale?
Decent deal at 50% off, but might drop further. Watch for better opportunities.
Is Knocking up my brother's wife: My sister-in-law can't resist my seed free to play?
Knocking up my brother's wife: My sister-in-law can't resist my seed costs $6.99 on Steam.
What genre is Knocking up my brother's wife: My sister-in-law can't resist my seed?
Knocking up my brother's wife: My sister-in-law can't resist my seed is a Adventure game.
Who developed Knocking up my brother's wife: My sister-in-law can't resist my seed?
Knocking up my brother's wife: My sister-in-law can't resist my seed was developed by Appetite and published by Tensei Games.
What platforms does Knocking up my brother's wife: My sister-in-law can't resist my seed support?
Available on Steam for Windows.