James Caldwell (Obsidian)

James Caldwell (better known as Obsidian) is a level designer from New Zealand, who joined the Doom community in 2012. In 2013, he was named one of the most promising newcomers at the 20th Annual Cacowards and his mapset Maskim Xul won a Cacoward in 2018. Caldwell's levels are often small and compact in playing space, and feature inventive and experimental design ideas alongside tight, controlled combat. He frequently employs extensive and creative use of DeHackEd, seen especially in Maskim Xul.

He is also known as the original host of the Abyssal Speedmapping Sessions, and the project lead of various MAYhem installments. Additionally, he has been a moderator on the Doomworld forums since 2021.

2012

 * Corridoors of Atrocity
 * The Sadistic Enclave
 * Happy Birthday Jimmy!
 * Random Speedmap to celebrate 40oz and Bloodycid's birthday


 * Doomworld Mega Project 2012

2013

 * Cadaveric Incubator of Endoparasites
 * Diet Vrack AKA Happy Birthday Pavera!
 * 10Tomb4


 * Monochrome Mapping Project
 * MAP23: Good & Evil


 * Inertia


 * 100 Lines
 * (100lineT.wad)
 * (100lineT.wad)
 * (100lineN.wad)
 * (100lineN.wad)


 * Obsidian's 30 Minute Maps
 * Operation Hydra


 * Abyssal Speedmapping Sessions: Session 1
 * Project lead
 * MAP03: Bloodrocuted


 * Galvanize
 * Hugin
 * Wyrda
 * Manin


 * Rayzik's Birthday Doom 2013
 * MAP03: Galvanize


 * MAYhem 2013


 * Doomworld Mega Project 2013
 * (DMP2013L.wad)

2014

 * Abyssal Speedmapping Sessions:
 * Session host (all 2014 sessions)
 * , MAP02: Verdant Cathedral
 * , MAP01: Poof Factory
 * , MAP07: Cul-de-sac of Bastards
 * , MAP08: Tarnsman's Pretty Little Cage
 * , MAP03: Angst
 * , MAP02: Angst 2: Angst Harder
 * , MAP03: Cul-de-sac of Utter Bastards
 * , MAP01: Herrrre's ARCHIE!
 * , MAP01: Dirge of the Blighted Ovum
 * , MAP02: OH GOD GET AWAY FROM ME!


 * Into the Code


 * Trinitrotoluene
 * Countdown to Extinction


 * Adage


 * WOOO 2


 * Ubi Amnis Est


 * MAYhem 2048


 * Abyssal Speedmapping Sessions: Session 12
 * Project lead
 * MAP02: Neural Crush


 * 32in24-14: How the Hamburglar Stole Christmas


 * Doomworld Mega Project 2014

2015

 * Abyssal Speedmapping Sessions:
 * Session host (13-15)
 * , MAP04: FUCK YOUR FOOD!
 * , MAP07: Blasphemerotic Fellocide
 * , MAP08: Obsidian's Lament
 * , MAP15: Yippee Splat!
 * , MAP11: Be Patient Honey, I Can't Find My Nipple Blades
 * , MAP03: My Internet is Masquerading as a Pair of Corduroy Trousers
 * , MAP01: BRRRRROOOOOOOOOOOOWWWWWNNNNNN, MAP12: GGGGGRRRRRRREEEEEEEEEEEEEEENNNNNNNNN
 * , MAP14: The Ballad of El Jaguar


 * Plutonia 1024: The Plutinya Experiment
 * (with Sebastian Graham (General Rainbow Bacon))
 * (with EffinghamHuffnagel)
 * (with EffinghamHuffnagel)


 * The Realm of Parthoris


 * NOVA II: New Dawn
 * DeHackEd
 * DeHackEd


 * Doomworld Roulette: Session 1
 * MAP04: The Mystic Temple of Ka'qun Babu


 * 32in24-15: DWANGO Unchained


 * MAYhem 1500


 * 2048 Unleashed


 * Doomworld Mega Project 2015

2016

 * Abyssal Speedmapping Sessions:
 * , MAP06: 1/4 Of My Dick Shuts Down Texas
 * , MAP12: My Nuts in a Lifeshell
 * , MAP12: An Age Old Heliotrope
 * , MAP06: Chugging a Lava Lamp
 * , MAP07: Metal Gear Rancid: SKSNAKE Eater
 * , MAP09: Requiem for a Liquidized Fetus
 * Freudian Slipgate
 * MAP13: El Nino
 * MAP20: The Great Abysm
 * MAP22: The Dark Semprini


 * Ave Exitium


 * Doomworld Mega Project 2016

2017

 * Abyssal Speedmapping Sessions
 * , MAP04: Auto-Erotic Jubilation, session host


 * 50 Monsters
 * MAP35


 * Speed Master
 * MAP19: Demense Of The Sleepless
 * MAP32: Divine Malediction


 * TNT: Revilution
 * DeHackEd
 * (with dobu gabu maru)


 * Confinement 256


 * Skinnyman


 * Super MAYhem 17


 * Doomworld Mega Project 2017


 * Maskim Xul


 * The Joy of Mapping 5: Winter Weekend

2018

 * Abyssal Speedmapping Sessions:
 * Session host
 * , MAP07: Your Glass is Empty
 * , MAP13: Anally Ravaged by the Baron: One Nite in Deimos
 * , MAP10: Fist Me, I'm Irish
 * , MAP05: A Fridge Full of Ovaries
 * , MAP12: The Man Who Once Fisted a Rhino
 * , MAP13: Unto Engine Winken
 * , MAP04: Korean Meat Faucet
 * , MAP05: so u r sp0opEd eh!
 * , MAP07: Vraaaaaaack
 * , MAP07: Absinthe-Minded
 * Tink
 * Doom 64 for Doom II
 * DeHackEd
 * MAYhem 2018
 * Project lead
 * , (with Redead-ITA)
 * Orange edition,
 * Epilogue maps
 * The Joy of Mapping 6: Joy Eternal
 * 1-Hour Speedmapping 2018
 * MAP02: Goop Juice
 * MAP09: Where The Mind Wanders
 * MAP22: Acridity
 * Doomworld Omega Project 2018
 * MAP46: Regeneration
 * Bloodspeed
 * MAP46: Regeneration
 * Bloodspeed

2019

 * Abyssal Speedmapping Sessions:
 * , MAP05: Crucifix Nail Nipples
 * , MAP07: Somewhere that's Gre...shit that name's taken
 * Rust
 * MAYhem 2019
 * Project lead
 * MAP18: Epilogue
 * MAP18: Epilogue

2020

 * Team Rocket 2 - Looks like we're blasting off again!
 * MAP26: Deathication
 * Candlemass
 * Isolation
 * Strain 1, MAP11: Pools of Unmaking
 * Dark Scythe
 * MAP20: Direct Shock
 * MAP36: Despair and Suffering
 * Friday Speed Mapping
 * MAP05: Tribulation
 * MAYhem 2020
 * Project lead
 * The 64 kb challenge: Vanilla Selection
 * MAP16: The Melting Pot
 * Abyssal Speedmapping Sessions:
 * , MAP06: Tower Defenestration
 * , MAP03: The Bane Mask Stay ON During Sex
 * , MAP02: KEEL-HAUL YOUR INFANT, MAP07: Big Fist at Tiffany's
 * , MAP06: Tower Defenestration
 * , MAP03: The Bane Mask Stay ON During Sex
 * , MAP02: KEEL-HAUL YOUR INFANT, MAP07: Big Fist at Tiffany's

2021

 * Abyssal Speedmapping Sessions:
 * , MAP05: Hugo Weaving's Dumptruck Emporium, MAP12: Not Piss
 * , MAP03: Rifle? Trifle? Eyeful?, MAP07: Tick, and if I may be so bold, Tock
 * , MAP04: I'm So Sorry Iikka, MAP11: Rush Limbaugh's Soft Shitty Corpse
 * , MAP04: DELICIOUS FUCK SAWSE, MAP06: Tetanus Tango
 * , MAP04: Car Park of the Elder Gods, MAP15: Ascertain
 * , MAP04: Ah Shit, There's Sand in my Megaarmor
 * , MAP04: Reaching for an Oversized Chrome Spoon, Alfonzo Gathers an Intimate Quantity of Dried Muffin Remnants and, Brushing his Scapular Aside, Proceeds to Dump These Inside of his Shirt, MAP07: Arrogantly Twisting the Sterile Canvas Snoot of a Fully-Charged Icing Annointment Utensil, Alfonzo Poots Forth a Quarter-Ounce Green Rosette Near the Summit of a Dense-But-Radiant Muffin of his Own Design
 * , MAP01: Fucking a Gramophone with the Correct Level of Enthusiasm
 * , MAP02: The Ghost of Doorsmas Past, MAP07: Wahlem Dauigi
 * , MAP01: Fuck, I Love Books, MAP03: Buckle the Fuckle Up, MAP07: Maladaption
 * 15 Years a Doomer
 * Ghosts in the Undergrowth
 * Tenth Gear
 * MAP21: Bleeder
 * Half Moon
 * , MAP26: Festering Iron
 * 10 Years of Doom
 * Alfonzo Settles Down and Opens a Nigerian Pretzelry after Winning the Grand Prize at the World Ballet Competition

2022

 * Doomworld Mega Project 2021
 * Abyssal Speedmapping Sessions:
 * , MAP01: The Single Onion Ring at the Bottom of Each Box of Shotgun Shells, MAP07: An Incomplete Disaster
 * , Session host, MAP03: Teh Pain Emmental 2: The Sequel That No-One Asked For, MAP07: Maskim Xul 2: Maskim Xul Harder
 * , Session host, MAP01: Yearns to Blunder, MAP03: GRATE ALL
 * , Session host, MAP08: Browntown, MAP09: Browntown 2: Trouble at Feculent Junction
 * , Session host, MAP01: Speebmapping, MAP06: Going Down (Not That One)
 * , Session host, MAP09: Screaming At My Own Ass, MAP18: What Happens When You Spell Boob Without The Last B
 * , Session host, MAP02: Alfonzo Falls Victim to the Classic Benadryl Quiche Prank
 * , Session host, MAP06: Prisencolinensinainciusol (Yes, That's The Map Name)
 * , Session host, MAP13: A Violent Smack in the Face from a Large Trout or Similar Freshwater Fish
 * , Session host, MAP01: ???
 * Session host
 * Compilation #1, MAP07: These Fucking Utensils, MAP16: Last ASS With Mary Jane
 * Compilation #2, MAP13: Celeri Memoria Cadi O Fuck
 * deceased.cable (with Fuzzball)
 * Thirty Monsters Challenge
 * MAP15: Pitted Iron
 * Full Moon 2
 * MAP08: The Subtle Art of Bogarting Kerosene
 * Doomworld Maximum Project 2021
 * Project lead
 * HUB: Doomworld Maximum Project 2021
 * MAP01: Vanilla/Limit Removing
 * MAP23: Boom/MBF
 * MAP45: Eternity
 * MAP46: SLADWALL Apocalypse
 * MAYhem 2022
 * Project lead
 * MAYhem 2022
 * Project lead

2023

 * Doomworld Maximum Project 2022
 * Project lead
 * HUB: Doomworld Maximum Project 2022
 * MAP01: Vanilla/Limit Removing
 * MAP18: Boom/MBF
 * MAP20: Necroduct