Comment Romero HAS made quite a few games... (Score 4, Informative) 144
... so give the guy at least a bit of credit.
From the "Giant List of Classic Game Programmers"
Romero, John [co-founder of id Software, Ion Storm, and Monkeystone Games]
[T] Scout Search (June 1984, AP2, inCider)
Cavern Crusader (1984, AP2, A+) contest winner
Bongo's Bash (1985, AP2, inCider)
[T] Major Mayhem (Dec 1987, AP2, Nibble)
Evil Eye (1987, AP2, UpTime) Asteroids-like
Subnodule (1987, AP2, Keypunch)
Jumpster (1987, AP2, UpTime)
Pyramids of Egypt (1987, AP2, UpTime) later (1989, PC, Softdisk)
Lethal Labyrinth (1987, AP2, UpTime)
Krazy Kobra (1987, AP2, UpTime) Snake Byte-like
Wacky Wizard (1987, AP2, UpTime)
Neptune's Nasties (1987, AP2, UpTime) Space Quarks-like
Zippy Zombi (1987, AP2, UpTime) Q*Bert-like
[N] GraBasic (1987, AP2, UpTime)
[T] City Centurian (Dec 1988, AP2, Nibble)
Dangerous Dave (1988, AP2, UpTime) later [G] (1990, PC, Softdisk)
[G] Space Rogue (1988, AP2, Origin)
[P] Might & Magic II (1988, C64, New World Computing)
[T] Treasure Dive (1989, AP2, Nibble) later (1989, PC, Softdisk) as Twilight Treasures
Sub Stalker (1989, AP2, Softdisk)
Zappa Roids, with Lane Roathe (1989, AP2/GS/PC, Softdisk) Asteroids-like
[P] Magic Boxes (1989, PC, Softdisk)
Alfredo's Stupendous Surprise, with Tom Hall (1989, AP2, Softdisk)
[P] How To Weigh An Elephant (1990, PC, Merit/Softdisk)
[P] Dinosorcerer (1990, PC, Softdisk)
[P] Same or Different (1990, PC, Merit/Softdisk)
[G] Dark Designs (1990, AP2, Softdisk) level design only
Double Dangerous Dave (1990, AP2, Softdisk)
[G] Catacomb II (1990, PC, Softdisk)
[G] Slordax (1990, PC, Softdisk)
[G] Commander Keen: Marooned on Mars (1990, PC, id/Apogee)
[G] Commander Keen: The Earth Explodes (1990, PC, id/Apogee)
[G] Commander Keen: Keen Must Die! (1990, PC, id/Apogee)
[G] Shadow Knights (1991, PC, Softdisk)
[G] Dangerous Dave in the Haunted Mansion (1991, PC, id/Softdisk)
[G] Hovertank One (1991, PC, id/Softdisk)
[G] Rescue Rover! (1991, PC, id/Softdisk)
[G] Keen Dreams (1991, PC, id/Softdisk)
[G] Rescue Rover II: Return of the Robots (1991, PC, id/Softdisk)
[G] Commander Keen: Secret of the Oracle (1991, PC, id/Apogee)
[G] Commander Keen: The Armageddon Machine (1991, PC, id/Apogee)
[G] Commander Keen: Aliens Ate My Baby Sitter (1991, PC, id/Apogee)
[G] Catacomb 3-D (1991, PC, id/Softdisk)
[G] Wolfenstein 3-D (1992, many, id/Apogee)
[G] Spear of Destiny (1992, PC, id/Apogee)
*[G] DOOM (1993, many, id)
[G] DOOM II (1994, PC/MAC, id)
[G] Heretic (1994, PC, Raven/id)
[G] The Ultimate DOOM (1995, PC/MAC, id)
[G] Hexen (1995, many, Raven/id)
*[G] Quake (1996, PC, id)
[D] Daikatana (2000, PC, Ion Storm/Eidos)
[G] Anachronox (2001, PC, Ion Storm)
[P] Hyperspace Delivery Boy! (2001, PPC, Monkeystone Games)
There's no question that the whole Daikatana thing was a fiasco, and I wouldn't hire Romero to manage a company, certainly, but the guy HAS made a lot of games, and many of them are quite good.