一億小目標 is a game that challenges players to achieve the goal of earning one billion before retirement. From selling bitcoins, domain names, and liquor to starting a gaming company, real estate firm, electronics manufacturing factory, or becoming an internet celebrity, players can explore various avenues to accumulate wealth. They can also form relationships with high school crushes, idol stars, nurse sisters, or gold-digging ladies. The game allows players to experience the ups and downs of the business world while also reflecting the spirit of the times.

In the game, players aim to become rich and successful before retirement. They can buy and sell items in the market, expand their warehouse, and accumulate capital. By establishing companies, players can enjoy the appreciation of assets and receive dividend income. Starting a company requires a significant investment initially, but players can increase or decrease their investment as the game progresses. Players can also spend money on buying houses, cars, and traveling around the world, which can change their attributes and potentially introduce hidden characters. By successfully pursuing and meeting the requirements of potential partners, players can enter into different exclusive relationships. However, players must also take care of their health, as a low health value increases the likelihood of falling ill and requiring hospitalization.