I did this same thing for Final Fantasy X a while ago. How long (as measured by in-game days) was Half-Life 2?
(Spoilers ahead, if you’re worried about spoiling a three year old game.)
At the opening, the lighting seems to suggest morning. You arrive at the train station and manage to get arrested by Barney, sent towards Kliener’s lab, jumped by Metrocops, and rescued by Alyx. Then the teleport goes wrong and you have to flee the city through the canals, and ride the boat to the dam. Fight the helecopter and then arrive at Black Mesa East near sunset. You meet Judith and Eli, and as it gets dark you learn how to use the Gravity Gun. End of day 1.
The Combine invade the compound and you have to take The Bad Way. You spend the night in Ravenholm and then move on to the mines. You emerge at dawn. You make your way along the tracks and intervene as the combine are attacking the first outpost. They give you the “car”, and you begin the long journey along Highway 17, all the way to the lighthouse. Help defend the lighthouse, and then navigate the sand traps in late afternoon. You have been awake for about 36 hours now, but you must still be feeling peppy because you move on to assault the Combine outpost without resting. End of day 2.
Antlions in tow, you penetrate the Combine defenses and assault Nova Prospect during the night. You fight waves of Combine, and then battle another huge antlion beast. You can only see a little slice of sky when you meet up with Alyx again, so it’s tough to judge the time of day. It’s overcast and dark, but not night. Let’s call it early dawn. You assault the place with Alyx and endure a couple of Combine assaults with the help of the auto-turrets. You find Eli and discover Judith’s betrayal. She steals Eli back and you teleport out of there.
The teleport sends you a week into the future, although it looks like you arrive at roughly the same time of day. It’s morning again when you emerge and Kliener explains about the revolt. You’ve been awake for 48 hours now, give or take. Time for rest? Nah. Let’s assault the Citadel! The battle to get there is long and intense. It takes all day, so that it’s sunset again when you face off against Dr. Breen. End of Day 3.
After three days of non-stop combat and exertion without food or sleep, Gordon at last gets a little rest. Wow. Theoretical Physicists are unbelievable badasses.
Episode One spoiler:
After a night of sleep underneath a pile or rubble at the base of the Citadel, Gordon wakes up and begins Episode One. It seems to end late in the afternoon that same day.
Quakecon 2012 Annotated
An interesting but technically dense talk about gaming technology. I translate it for the non-coders.
The Biggest Game Ever
Just how big IS No Man's Sky? What if you made a map of all of its landmass? How big would it be?
The No Politics Rule
Here are 6 reasons why I forbid political discussions on this site. #4 will amaze you. Or not.
Silent Hill Origins
Here is a long look at a game that tries to live up to a big legacy and fails hilariously.
Two minutes of fun at the expense of a badly-run theme park.