Related to gaming and preserving memories, I recall a Reddit thread a couple of years ago about a young lad who loved playing a first person car racing game with his dad.

After his dad unexpectedly passed, he went back to the game one day and noticed his dad's "ghost" car racing against him on the track. As his dad's ghost car would always be the one to race against as long as it held the lap record, I believe he said that if he ever got close to beating his dad's time, he would back off and lose the head to head so that he could always continue to race his dad.