1. Eli Vance
Being a single dad ain't easy especially when you're heading up secretive scientific research that brings in an alien invasion that kills your wife and brings the destruction of an entire planet. Luckily when you're as charming and caring a dude as Alyx Vance's pappy, Eli, *SPOILER* the heartbreaking sight of seeing him lying on the floor dying at the end of HL2: Episode 2 is enough to secure your spot on this list.
Whether he's leaving you unattended to play by yourself in an underground bomb shelter or leaving clues for you to follow across the unforgiving capital wasteland, James from Fallout 3 deserves a spot on this list. This man has a reason to hate you for being the reason that his wife died was that she gave birth to you. However he doesn't. The only thing that concerns him is your safety. So he says, i mean, what kind of parent lets the kid play unsupervised with a stats selection book?
3. Sam Fisher
He's a badass. He's a Dad. He's a badass dad. What other guy leaves tucking the kids into bed to take 2 steps out of his daughter's room only to kill 3 guys breaking into his house? Or while he's out espionaging, remember that he forgot to do your laundry? Or who would go that far off the deep end after hearing his kid died to the point of not giving a FUCK about anything? This guy, happy father's day Sam.
4. Big Daddy
From gently helping a kid into their hidey hole, to impaling the shit out of dudes in 0.6 seconds.
5. Big Boss
Without him there's no Solid Snake...or Liquid Snake...or Solidus...or stories that take forever to explain and if you think hard enough about them, make no goddamn sense. Ah well, Happy Pappy's day you cycloptic bastard.