Keiko has done the following roles in games.

Air [Dreamcast, PlayStation 2, PSP]	?
B Senjou no Alice [Playstation]	Rooju
Der Langrisser [PC FX]	Jessica
Gundam Battle Royale [PSP]	Lala Sun
Kidou Senshi Gundam -Typing Ichinen Sensou Zaku Da [Mac, WIN]	Lalah Sone
Kids Station Bishoujo Senshi Sailormoon World Chibiusa to tanoshii mainichi [PlayStation]	Luna
Langrisser I and II [Playstation] {II}	Jessica
Moero! Justice Gakuen [Dreamcast]	?
Next King -Koi no Sennen Oukoku- [Playstation]	Malane
Sailor Moon Supers Shin Shuyaku Soudatsusen [Playstation]	Luna
Super Robot Taisen A Portable [PSP]	Lala Sun