頭文字D ARCADE STAGE
The AM1 division has continued within Sega since the re-integration of Sega Wow. Further development since 2004 has included smartphone games, such as "Chain Chronicle." Some of AM1's arcade developments since 2004 include "Maimai", "Initial D Arcade Stage 8 Infinity", "Puyopuyo!! Quest Arcade", "Fist of the North Star: Battle Medal", and "Starhorse III", as well as "Sangokushi Taisen", a digital collectible card and trading card game. AM1 is said to be the broadest division of Sega covering arcade video games, smartphone apps, games for kids, medal games, and simulators.