Big Sister CD Key
PC price comparison · HaHaHaGame · Sep 21, 2026
A desktop pet game for work, study, and relaxation. She blinks, breathes, follows your cursor, and moves naturally. Drag, resize, pin, or lock her, and discover more compatible characters through Steam Workshop.
Lowest final price
at Steam · Standard Official
Historical low: $0.79 on September 22, 2026
Get the best deal ↗Compare Big Sister key prices
Sorted by final price including fees, never by commission.
| Store | Edition | Activates on | Region | Price | Fees | Final price | |
|---|---|---|---|---|---|---|---|
SteamOfficial | Standard | Steam | Global | −20%$0.79 | none | $0.79 | Go to store ↗ |
- SteamOfficial
Standard · Steam · Global
$0.79 · fees: noneGo to store ↗$0.79
Big Sister price history
The chart appears after a few days.
Historical lows by store
- Steam$0.79
Big Sister player count
- Playing now
- 15
- 24-hour peak
- 35
- 30-day peak
- 35
Concurrent players on Steam, hourly peak over the last 7 days. Source: Steam Web API.
About Big Sister
A gentle companion on your desktop This is a desktop pet game. When launched, she settles into a corner of your desktop and quietly stays by your side while you work, study, browse the web, or relax. There are no schedules to complete and nothing that interrupts what you are doing. Place her wherever you like, watch her blink and breathe, and see her turn her gaze toward your cursor, adding a little warmth and life to everyday computer time. A lively, naturally animated character Real-time gaze: Her head and eyes smoothly follow the direction of your cursor. Blinking and breathing: Natural idle movement keeps the character from feeling like a static illustration. Physics-driven movement: Hair and clothing sway gently with her motion. Detailed at every size: Character rendering is optimized to remain sharp and detailed when enlarged or reduced. Place her exactly where you want Hold the character to drag her anywhere on the desktop. Hover over her and use the mouse wheel to resize her from 55% to 450%. Position and scale are saved automatically, and placement can be restored across multi-monitor setups. Switch between always-on-top and normal window behavior at any time. Keep her in front of your windows, or let her stay behind them when you need to focus. Quiet companionship without getting in the way Transparent areas around and inside the character support per-pixel mouse passthrough. Empty spaces between the legs or around strands of hair will not block normal desktop interaction. When you want every mouse action to pass through the character, enable Lock mode. You can unlock her again from the taskbar icon or system tray menu. Convenient desktop controls Drag the character with the left mouse button and resize her with the mouse wheel Right-click the character to open the quick menu Use the system tray menu to change settings, switch characters, lock, or exit Choose whether the taskbar icon is visible Switch always-on-top behavior at any time Start automatically with Windows Automatically save language, position, size, character, and desktop display settings Single-instance operation prevents duplicate desktop characters from launching Expand your collection through Steam Workshop The game includes one built-in desktop pet character and supports additional compatible characters from Steam Workshop. Browse and search community characters Subscribe, unsubscribe, and switch directly to downloaded characters Upload your own…Read more
Big Sister system requirements
Minimum
- OS *: Windows 7
- Processor: i5
- Memory: 400 MB RAM
- Graphics: Intel HD Graphics 4400
- Storage: 400 MB available space
Big Sister key FAQ
+What is a Big Sister CD key?
A Big Sister CD key is a digital code that unlocks the game on a PC platform such as Steam. After redeeming it, you download the game directly from that platform and it stays in your library.
+What is the cheapest price for Big Sister?
The cheapest Big Sister key right now costs $0.79 at Steam, 20% off the regular price. We compare 1 offers from 1 store, and the price already includes payment and service fees.
+What is the historical low for Big Sister?
The lowest price we have recorded for Big Sister is $0.79 on September 22, 2026. Check the price history chart to decide whether to buy now or wait for the next sale.
+How many people play Big Sister?
Right now 15 people are playing Big Sister on Steam, with a peak of 35 in the last 24 hours. Player counts are updated every 15 minutes.
+Is it safe to buy a Big Sister key?
Buying from an official store such as Steam, GOG or Epic Games is always safe. Key resellers are often cheaper but sell keys second-hand, so check the region lock and buyer protection before you buy. Every offer on GameKeyDeal is labelled as official or reseller.
