Halloween Merge: House Design is a fascinating mobile game developed by foranj.games. The game is set in Spellton Mansion, an old house full of ghosts, magic, and mysterious secrets. The storyline revolves around the sudden disappearance of Aunt Blake, leaving behind a medallion that goblins are hunting. The protagonist, Chloe, embarks on a journey to solve the mystery behind Aunt Blake's disappearance and the medallion.

One of the key features of the game is the merge mechanic, where players combine different magical items to solve the Spellton family mystery. Along with merging, players also get to renovate and decorate rooms in the mansion. The game features different characters with whom players can interact, and a lovely magic cat that serves as the player's companion throughout the adventure. The game has a mythical storyline that keeps players engaged, and they must keep an eye out to avoid getting tricked by monsters. Halloween Merge: House Design is free to play and can be played offline without an internet connection.