"Wondaful House (Dogful House)" is a dating simulation game that immerses players in a world with a dog-eared girl named "Mao." The game incorporates RPG elements with characters from previous works, such as "Mei" and "Kanna," where players embark on an adventure to rescue "Mao." To increase intimacy, players can pat the character's head, unlocking dating events as they progress.

In-game, players collect coins by petting dogs, including rare ones, to exchange for items that enhance gameplay. The game offers a variety of completion elements, appealing to players who enjoy casual games and seek relaxation in a "leave-it-alone" type of gameplay. With charming illustrations and voice acting, players are introduced to an engaging world filled with endearing characters.