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World Congress 2023 • Aug 11, 2023

Live doom II deathmatch with John Romero

John Romero

John Romero proves that leveraging 1990s engine quirks remains a timeless software engineering masterclass. Watch the legendary co-creator drop game design secrets during a live Doom II deathmatch.

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#1 about 11 min

Configuring the hardware and network for live deathmatch

Preparing classic networking and hardware setups enables seamless arena gameplay.

#2 about 18 min

Testing arena combat skills with enthusiastic audience volunteers

Battling community members reveals how classic map positioning and weapon control govern local multiplayer.

#3 about 4 min

Driving multiplayer innovation and the birth of networked parties

Pushing beyond single-player campaigns required robust local area networking protocols to support simultaneous play.

#4 about 14 min

Showcasing map design concepts and intuitive jumping mechanics

Analyzing retro level geometry demonstrates how subtle environmental cues taught players momentum-based traversal.

#5 about 5 min

Teasing new game projects and discussing musical inspirations

Examining ongoing first-person shooter development highlights how heavy metal pacing shapes intense combat loops.

#6 about 6 min

Employing advanced navigation and spawn control in veteran matches

Fighting experienced opponents requires strict map control and aggressive weapon denial strategies.

#7 about 8 min

Executing high damage weapon strategies against expert challengers

Utilizing specific engine mechanics like silencing bugs allows players to maximize high-tier weapon damage.

#8 about 8 min

Concluding the live multiplayer session with final arena bouts

Final chaotic rounds illustrate how fast movement and explosive prediction remain paramount in retro shooters.

#9 about 2 min

Wrapping up the event and hosting community discussions

Closing the multiplayer showcase transitions directly into community networking and industry meet-and-greets.

Matching moments

4:43 min

Democratizing game development through modding communities

Chris Heilmann +2 · LIVE

2:26 min

Following up Doom with Quake and integrating GPU hardware

John Romero John Romero · World Congress 2021

3:00 min

Conceptualizing Doom and building open architectures for community modding

John Romero John Romero · World Congress 2021

3:57 min

Modding board games and early software engineering jobs

Brenda Romero Brenda Romero · LIVE

2:01 min

Founding id Software and pioneering early 3D rendering engines

John Romero John Romero · World Congress 2021

2:10 min

Releasing Wolfenstein 3D and handling international game censorship controversy

John Romero John Romero · World Congress 2021

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Upcoming sessions on this topic

Open session

World Congress 2026 North America

September 24, 2026 · 18:30–19:30

Stage 3

Live DOOM II Deathmatches with John Romero

Speaker TBA

Open session

World Congress 2026 North America

September 24, 2026 · 17:30–18:00

Mainstage

Keynote by John Romero, the Legendary Game Creator

John Romero

Legendary Game Creator | Father of FPS | DOOM, Quake, Wolfenstein

John Romero
Open session

World Congress 2026 North America

September 24, 2026 · 11:00–13:00

Stage 9

Creating and Sustaining Positive Communities

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Community Developer

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Open session

World Congress 2026 North America

September 24, 2026 · 14:10–14:40

Stage 2

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CTO of Les-Tilleuls.coop / Symfony Core Team / PHP & FrankenPHP Core Maintainer

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Outdoor Stage

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National Executive Advisor at Code & Coffee | Engineering & AI Community Leader

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Open session

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September 25, 2026 · 16:50–17:20

Stage 1

Honey, look! I vibe-coded an OS!

Ian Smith

CTO, LYOS

Ian Smith

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