My Big Sister
Offers
Trailers & screenshots
1 / 13


About My Big Sister
My Big Sister is an RPG-like, top-down adventure about Luzia and her sister Sombria, who try to get home after strangers kidnap them. Luzia, a sarcastic twelve-year-old with a playful sense of humor, takes it upon herself to get them both home.
Puzzles and secrets
Across multiple chapters, you solve puzzles and find specific items to advance the story. The game also contains secrets and multiple endings.
Presentation
The game uses top-down pixel artwork and has an original soundtrack.
Frequently asked questions
The best price for My Big Sister is $0.34 at Kinguin. That is 94% less than on Steam, where it costs $5.99. 12 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and My Big Sister stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for My Big Sister are: Windows XP, Intel Pentium 4, 50 MB RAM, 200 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. My Big Sister is a single-player game.
Mostly, yes. Valve rates My Big Sister as Playable on the Steam Deck: it runs, but may need some manual setup.
Buy My Big Sister 94% cheaper than on Steam.
My Big Sister is available for 94% less in shops such as Kinguin, Eneba, or Driffle.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











