VirusTotal gives a trojan warning for the installation archive [it's ok though, see the response below]
Viewing post in Jam and the Mystery of the Mysteriously Spooky Mansion comments
Sorry to have caused you any alarm! This game was made using Ren'Py, which apparently has caused false positives before on VirusTotal. I assure you that the game doesn't contain any viruses.
If you're interested, there's been some discussion on the Ren'Py form about this (https://lemmasoft.renai.us/forums/viewtopic.php?t=41570).