All that can be read in the house has been read.

Found and experienced the secret ending.

Saved one housemate.

Opened all four locked doors in the house.

Listened to voicemails for all six housemates.

Watched all possible death scenes across all the possible time lines.

Saved all six housemates.

Discovered the secret personal issues of all the housemates.

Witnessed every possible event across all the different timelines.

Saved all six housemates while also resolving their personal issues.