Skyrim, X-COM: UFO Defense, and, er, hidden object game Escape Rosecliff Island. Looking in his library on there, there were three games that sat atop his 'most played' list, with hundreds of hours clocked up for each.
After my dad died in 2016, one of the more peculiar things I had to do was go through his computer, log him out of everything, and close down various accounts. I have a mystery that will likely never be solved. Past Perfect is a retrospective column in which we look back into gaming history to see whether old favourites are still worth playing today.