1. Project Mercury

https://store.steampowered.com/app/702150/Project_Mercury/
 

2. 본편(무료게임) 등록 후 아래 DLC 등록

Mobile Astro

https://store.steampowered.com/app/565110/Mobile_Astro/

Mobile Astro EX Pack

https://store.steampowered.com/app/953350/Mobile_Astro_EX_Pack/