Doom the Way id Did: The Lost Episodes

Doom the Way id Did: The Lost Episodes is a 2012 megawad for Ultimate Doom containing six new episodes totalling 53 levels created with maps submitted to Doom the Way id Did which did not make the final cut. It is still in development at the time of this writing, but betas have been released.

Levels
Episode 1: Knee-Deep in the Dead
 * E1M1: Security Outpost by Nick Laurent (Hobomaster) and Jon Vail (40oz)
 * E1M2: Supply Station by Lorenzo Davia (Ultimate Lorenzo)
 * E1M3: Nukage Dump by Chris Pisarczyk (Mr. Chris)
 * E1M4: Quarantine Zone by Lorenzo Davia (Ultimate Lorenzo)
 * E1M5: Kepler Dorsum by St. Alfonzo
 * E1M6: Pumping Station by MithranDenizen
 * E1M7: Transfer Hub by Jon Vail (40oz)
 * E1M8: Enigma by Emil Brundage (NaturalTvventy)
 * E1M9: Relay Station by Marcaek

Episode 2: The Shores of Hell
 * E2M1: Biosphere by Lorenzo Davia (Ultimate Lorenzo)
 * E2M2: Cooling Towers by Jon Vail (40oz)
 * E2M3: Infirmary by Jeff Shark (Marnetmar)
 * E2M4: Waste Treatment by Jacob Zuchowski (ellmo)
 * E2M5: Logistics Facility by Megasphere
 * E2M6: Rend of Misery by Jacob Zuchowski (ellmo)
 * E2M7: Dark Passage by Chris Pisarczyk (Mr. Chris), Callum Guy Oliver (phobosdeimos1) and Jeff Shark (Marnetmar)
 * E2M8: The Gate by Jeff Shark (Marnetmar)
 * E2M9: Petersen Station by Walter Confalonieri (daimon)

Episode 3: Inferno
 * E3M1: Hell Breach by Walter Confalonieri (daimon)
 * E3M2: Manufactorium by Marcaek
 * E3M3: Necromanteion by Matthew Edwards (Foodles)
 * E3M4: Tartarus by XenoNemesis and Xaser
 * E3M5: Purgatorio by Jon Vail (40oz)
 * E3M6: Stygian Caverns by Henri Vuortenvirta (Icytux)
 * E3M7: Sheol's Descent by Sebastian Graham (General Rainbow Bacon)
 * E3M8: Nucleo Interno by Jeff Shark (Marnetmar) and Mr. Freeze

Episode 4: Thy Flesh Consumed
 * E4M1: Bridge to Nowhere by Captain Toenail
 * E4M2: Demonic Halls by C30N9
 * E4M3: Despair by Captain Toenail
 * E4M4: Phlegethon by Captain Toenail
 * E4M5: Diabolico by Megasphere
 * E4M6: Forgotten Caverns by Emil Brundage (NaturalTvventy)
 * E4M7: Babel's Gate by Matthew D. (Matt534Dog)
 * E4M8: Temple Guardian by Taedium

Episode 5: Base Instinct
 * E5M1: Landing Zone by Jacob Zuchowski (ellmo)
 * E5M2: Observatory by Jeff Shark (Marnetmar) and Jason Root (Hellbent)
 * E5M3: Recycling Plant by Jeff Shark (Marnetmar)
 * E5M4: Decayed Refinery by ShadesMaster
 * E5M5: Science Facility by Jon Vail (40oz)
 * E5M6: Disposal Area by Marcaek
 * E5M7: Cold Steel by Chris Pisarczyk (Mr. Chris) and Mr. Freeze
 * E5M8: Like Rotten Meat by Jeff Shark (Marnetmar)
 * E5M9: Phobos Garrison by Jon Vail (40oz)
 * E5M0: Starport by Jeff Shark (Marnetmar) and Xaser

Episode 6: The Final Gate
 * E6M1: Deja Vu by Jeff Shark (Marnetmar)
 * E6M2: Intrusion Zone by Lorenzo Davia (Ultimate Lorenzo)
 * E6M3: The Pain Yards by Jon Vail (40oz)
 * E6M4: Deimos Fortress by Matthew D. (Matt534Dog)
 * E6M5: Pit of Despair by Jacob Zuchowski (ellmo)
 * E6M6: Anomaly of Evil by Captain Toenail
 * E6M7: Land of Awe by C30N9
 * E6M8: Malebolge by Marcaek
 * E6M9: Hell's Mosh Pit by Jason Root (Hellbent)