宝石之心 is a completely free single-player simulation game developed by 福城 侯. As their first creation, the game aims to provide an enjoyable experience for players, despite its imperfections.

In 宝石之心, players are tasked with managing and operating a virtual business. The game offers a simulation of running a jewelry store, allowing players to engage in various activities such as buying and selling gemstones, crafting jewelry, and managing finances. With its simple yet immersive gameplay, 宝石之心 offers an opportunity for players to experience the challenges and rewards of entrepreneurship.

While the game may have some shortcomings, 福城 侯 hopes that players will find joy in playing 宝石之心. So, if you're looking for a free simulation game to pass the time and explore the world of jewelry business, give 宝石之心 a try!