In Game accomplishments summary.
Either accessible in game, or after death, a list of in game accomplishments examples :
Cans of beans eaten: 470
Zombies killed : 1203
Distance Traveled : 401,409 km
Shots fired:586
Times waved: 18
Water drank: 12,003 L
Towns found: 32
Survivors Killed: 1
Lowest blood level : 243

I know this is going for realism, however I feel that this would help people appreciate the level of detail going into the production. And give added value to goals set in the game or on a personal level.