Happy Birthdays, also known as Birthdays the Beginning on other platforms, is a sandbox simulation game for the Nintendo Switch released in 2018. Developed by Nippon Ichi Software and ARC System Works, players create cube-shaped worlds that facilitate the birth and evolution of various species. By manipulating the terrain, altering environmental conditions, and using a variety of items, players nurture life, witness evolution, and discover an array of creatures, from single-celled organisms to complex animals. The game offers a blend of creative gameplay with educational elements, exploring themes such as ecology and evolution in an engaging and interactive manner.