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Doom was the beginning of so many things. When it debuted December 1993, it cemented the appeal of the first-person shooter computer game and spawned a genre that is now a multibillion-dollar business. John Romero, who still has rock star-length hair, was a big part of its success as a co-founder of id Software, the Dallas-area company that is now owned by Bethesda Softworks.

Doom 20th anniversary celebration invite.

Above: Doom 20th anniversary celebration invite.

Image Credit: John Romero

Romero, now the creative director of the University of California at Santa Cruz’s game design program, celebrated the game’s 20th anniversary at an event at the university’s Digital Arts Research Center. He and his wife, Brenda Romero (the program director at USSC), marked the anniversary with multiplayer “deathmatch” sessions, a little bit of trash talk, and some academic chatter about the violent and bloody game.

It seemed so strange to see Romero and his fellow game creators — including former id developers Tom Hall (pictured top, left) and Dave Taylor (pictured at top, right)– being honored at a university for creating a game that caught so much criticism for its shotgun-chainsaw-big-f**ing-gun violence, Satanic imagery, and, worst of all, its assassination of productivity around the world in offices that had networked computers.

Henry Lowood, a professor at Stanford University, said that it gets credit for so many innovations — from multiplayer play to modding — that Doom should be known as the “beginning of the modern digital game.” Minecraft creator Markus Persson praised Doom for getting him into games.

He said that the 1993 press release announcing Doom was the first time that anyone mentioned the phrase “Doom engine.” John Carmack, id co-founder and its top technologist, had coined the term to separate the underlying technology from the game. It turned out to be a lasting legacy, as companies like id and Epic Games licensed their reusable technology so that game designers could focus on their games, not tech. Id Software and Doom also galvanized the community of indie gamers, as the team supported a more open and less greedy approach toward community.

Romero left id Software to start his own company, Ion Storm, which imploded after raising high expectations. Romero hasn’t always succeeded, but he has always been at the forefront of innovation in the industry, working on massively multiplayer online games, mobile titles, and Facebook games.

I caught up with him at the anniversary event. We played Doom and Doom II on networked computers, and we caught up with the old timers who came to honor the anniversary. Romero proved that he’s still brutal in multiplayer combat.

Here’s a transcript of our interview with Romero.

John Romero at 20th anniversary Doom event

Above: John Romero at 20th anniversary Doom event

Image Credit: Dean Takahashi

GamesBeat: This must bring back some interesting memories. What’s at the forefront of your mind, having this kind of evening here?

John Romero: The funny thing is, I remember everything, all the time. I have hyperthymesia [a condition that gives a person an almost autobiographical memory of their life], so I know all this stuff like I know yesterday. I put together this video that’s about an hour-long. It took like five hours to build the video. But putting together the video wasn’t like, “Oh, I forgot about all this stuff.” It’s, “I remember exactly where that happened. I know  exactly where that’s from.”

GamesBeat: What do you say when people ask you for the quick “What’s the legacy of Doom? What’s the cultural impact of Doom?” It would make my head hurt.

Romero: Geez. The first-person shooter genre. Video game violence. Multiplayer. Maybe e-sports. The game engine. Modifying games. The mod community, which is where Portal and Team Fortress and Counter-Strike and all these other huge franchises came from.

GamesBeat: Maybe even Call of Duty or Minecraft.

Romero: Yeah. In fact, Markus Persson got into games was because of Doom. It’s funny. I’m obviously not going to take credit for it, but basically Doom led to DirectX, which is what every game that runs on Windows uses now. At Microsoft, they saw Doom, and they immediately said, “We need to make something so every developer can do that. We need to create an API for everyone.” That’s when the DirectX 1.0 project was started.

GamesBeat: What’s some of your favorite Doom trivia?

Romero: I’ve been putting a bunch of trivia up here on the screen, like the original names of characters. The Baron of Hell was originally called Bruiser. We had two of them at the end of episode one. We called them the Bruiser Brothers. The Cacodemon was taken from the Manual of the Planes, the cover of the old D&D sourcebook. The sky in episode one was taken from a photo book of some really nice scenes from China, when it was overcast. The Arch-Vile in Doom II was a character that resurrected all the dead demons that you killed. We called him the Medic originally.

The cheat codes in the game were created by Dave Taylor. There’s one called “IDDQD,” which is invulnerability. “DQD” stands for Delta Q Delta, which was the name of a fake fraternity that he and his buddies had created. They would play so many games and spend so much time programming that they would fail classes, but before they failed out they would quit first so they didn’t ruin their GPA. So you get “Delta Quit Delta.”

Doom screenshot

Above: Doom screenshot

Image Credit: id Software

GamesBeat: I wanted to divide things up into something like the intentional legacy and the accidental one. Intentional, there are things like making the game violent, making it bloody, so that it stood out from other games. And the Satanic stuff, that’s all very intentional. What were you thinking when you said, “Hey, let’s throw this into Doom.”

Romero: Basically, after Wolfenstein, we had to make something that was even more out there. We had to one-up ourselves. I’ve been showing videos of Brutal Doom, which is way over-the-top violence, but if you play the original, it really wasn’t crazy over the top, blood all over the walls. There was enough blood that you knew that you hurt something, but it wasn’t way over-the-top gratuitous.

We were trying to be a little realistic with how much violence we put on the screen, but it was still—at the time it felt like it was extreme. But we knew that when we put it in there, it wasn’t too over the top. It wasn’t too crazy. We were just trying to be more realistic, even if it did go further than, say, Wolfenstein.

We weren’t trying to do that to shock people. It was just like, “This is what happens when you shoot a rocket at something.” I want to get that feedback as a player.

GamesBeat: Did you know you would offend people? Was it a countercultural thing?

Romero: No. We never made our games to offend people or shock people. We made games for ourselves. When we started Doom, it was really the first time that we knew we could make something great, after Wolfenstein. At the beginning of Doom, we said, “We need to make the greatest game that we could ever play.” Whatever we could imagine that would be the best thing we could play, we wanted to make that game.

It was the only time we had that kind of statement of what we would do. Everything else was, “Yeah, let’s make this game and see what it turns into. Oh, that’s cool. Right, game’s done.” But with Doom, this was what we were going to try to do. We had a goal around that. It was about making the best game we’d ever played in our lives. All of our focus was on that. It had nothing to do with anything outside the company.

We didn’t care what other people thought, because we felt like our prior successes told us that if we made whatever we felt was really cool, there would probably be a lot of people that would like what we thought was cool. We weren’t worried about anything else. We weren’t worried about offensive stuff, because that would stop us from making what we were trying to make. As artists, we’re trying to be true to our vision.

Because, in the game, you were killing demons, and demons are really a religious thing—everyone in the company was an atheist. We didn’t believe in hell or heaven or any of that stuff. Putting demons in there was just, “This is what people believe in.” We thought that the juxtaposition of future science—a space marine on a moon of Mars with all these experiments happening, it’s very scientific and futuristic—and then all of a sudden this religious thing happens, demons coming through a portal, versus aliens—