Hollow Moon Beta v2.0

You are Talos Davon, and you arrive to the moon research colony that exists for meny years, in order to work as heavy machinery specialist. But no one come in contact with you and no one come to meet you. You enter an enormus, abandoned station which scale is unknown since its located mostly underground and has many restrict areas that you were forbiden even to ask about. But now when everyone is gonne, who can stop you from trying to find out where is the crew and where the humanoid creatures that navigate trought this station like ghosts, came from. You cannot return since your shuttle won't reach earth by itself and the interplanetar space craft left to mars and next one wont arrive in next few mounth.