All advertising campaigns created have been posted to their YouTube channel, garnering more than 6 million views and 35,000 subscribers in total as of January 5, 2022. The advertisements were created in collaboration with W+K and were directed by Jim Jenkins. In the ad, Pascal plays detective Tim Rockford, who's trying to capture a mysterious grandmother who is insinuated to have committed a murderous crime. In early 2023, Merge Mansion started sharing new advertisements featuring actor Pedro Pascal. Bates described the filming experience as 'so much fun'. A series of live-action advertisements were created, hiring Kathy Bates as the actor for Grandma Ursula and Grace Rex as Maddie. Merge Mansion's advertising campaigns have received notable attention on the internet from famous YouTube content creators, such as Danny Gonzalez and MatPat. In order to renovate the mansion and progress through the narrative, players need to continue to merge different items such as these. For example, two knives turn into pruning shears, while two lightbulbs make a post light.

These items include tools, furniture, plants, etc. Players need to merge two items to create a brand new, upgraded item. As the player unlocks new areas, the story continues to unfold and Grandma Ursula reveals some of their family mysteries. During gameplay you merge existing items and spawn new ones in order to clean up different areas of the mansion. Maddie has to renovate the surroundings by cleaning and repairing everything, or the entire place will be condemned. The game starts with Grandma Ursula handing Maddie a set of keys, which turn out to unlock the gate of the mansion. Merge Mansion is a puzzle game where the player completes tasks as the character, Maddie, whose grandmother (Grandma Ursula) owns the mansion. The official gameplay soundtrack, titled 'Merge Mansion (Official Gameplay Soundtrack)', was released on the 16th of April, 2022. The game was promoted with ads described as 'weird', 'dramatic', 'plot-driven', 'interesting', and created for 'virality'. A large contributing factor in Merge Mansion's success has been attributed to the advertisements by Metacore in promotion for the game.

From January 1 to November 16, 2021, Merge Mansion generated $38.6 million. As of Augit has been downloaded over 40 million times. The company is based in Finland, as stated on Merge Mansion's YouTube channel about page. Merge Mansion is a mobile game for Android and iOS released in 2020.

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