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Enhance your game with 5 motions and 4 voice dramas! Explore the sisters' private side in this must-have extra content pack.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
This is the base game required to play this DLC. Other expansions may also be required.
Dive deeper and more provocatively into the world of "Sister X Lovers."
This is a special "Extra Contents" site designed to bring out the maximum charm of the heroines who color the main story. Experience an even closer intimacy with them through subtle gestures not fully captured in the main game and whisper-soft voice dramas.
【Content】
・Additional Motions (5 types total):
Features numerous smooth, dynamic limited-edition motions set in various situations.
Format: mp4 files
・Voice Dramas (4 episodes total):
Experience sweet moments with the sisters through audio. Enjoy an immersive drama experience (headphones recommended).
Format: mp3 files
◆Installation Location
An "extra_contents" folder will be added to the game directory. Please open the "index.html" file within that folder in your web browser.
◆ Content Warning
This DLC contains content that is not appropriate for all ages
and may not be suitable for viewing in the workplace.
It includes nudity, sexual content, and other mature adult content.
Right now the cheapest offer for Sister X Lovers 「Extra Contents」 is PLN 55.49 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Sister X Lovers 「Extra Contents」 is PLN 55.49 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Sister X Lovers 「Extra Contents」 drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
Audio & text: Japanese
Text only: English, Simplified Chinese, Traditional Chinese
