It all begins when Wendy decides to throw an end-of-year party at home with her friends. Before she gets a chance to ask her parents, her unbearable little sister Maureen steals her idea and asks their parents first. Unfortunately, the parents will allow only one party!
Maureen and Wendy start a series of crazy challenges to decide which one of them will host the party. With sister against sister, there is going to be trouble!
Immerse yourself in a fun and delirious universe starring two sisters, who are never short of mischievous ideas!
Explore the Sisters' city and complete quests and challenges in Adventure mode.
Have fun with your family and friends in one of the four multiplayer modes
Challenges: play the mini-game of your choice with friends!
Tournament: try to win the tournament by being the best in each round!
All or Nothing: play all the mini-games one by one!
Around the World: take turns choosing your favorite mini-game!
There are 24 crazy mini-games, which come straight out of the Sisters’ imagination, such as unicorn toss, cupcake factory and extreme ping-pong.
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2026-06-11
Celebrate FIFA World Cup 2026 with YUPLAY
The FIFA World Cup 2026 is coming in hot this summer and while these coming weeks it is all going to be centered around the best game in the world of sports, we decided to bring you a dedicated YUPLAY giveaway to commemorate the occasion together! This promotional giveaway campaign invites all of our followers to try and predict the exact final scores of selected matches from the World Cup…
First V-Bucks, Now Steam Decks: Why Gaming is Getting More Expensive
Has gaming been steadily becoming more and more expensive lately? In the past months and quarters there has definitely been an increase in pricing in both the software and hardware departments of gaming and this trend has definitely stricken the market in more than a couple of ways. The industry has experienced a trend of gaming price increases as well as more expensive subscriptions…