Introduction
Doom X—originally titled The Last Marine—was a highly ambitious 32-map Doom project developed by Pierre Ramirez, known in the Doom community as Melvin Flynt.
The project began in the early 2000s and underwent a long period of development from around 2006 to the mid-2010s. It was intended to be a modernized and expanded version of The Last Marine, an obscure PWAD that had previously been featured on at least two PC Gamer coverdiscs, including one from the Italian edition.
Origins
The Last Marine was a standalone wad with several maps released in the 1990s. Pierre Ramirez began rebuilding it as Doom X, aiming to turn it into a full 32-map megawad. The project used the ZDoom source port and took advantage of its DECORATE scripting system to introduce new gameplay elements and enemies, eventually running on GZDOOM.
Custom Content
Doom X planned to include a wide range of original assets, including enemies inspired by Return to Castle Wolfenstein, Doom 3, and Quake. Weapon enhancements were also planned in later stages of development. Although the full megawad was never completed or released, several enemies and resources made their way into the Doom community, namely; the Flesh Wizard and Loper appeared in the Realm667 Beastiary. The Angel of Death became part of ZDCP2. The Succubus and Trite were released on the project's Mod DB page.
Gangsta Grosse, a custom boss character, was released in a standalone test map and circulated widely as a novelty.
Development Halt and Abandonment
The project appears to have been abandoned around 2016 or 2017. One likely reason is the discontinuation of ZDoom and the retirement of DECORATE in favor of ZScript, which required substantial rewriting of existing code.
The developer may not have had the time or interest to transition to the new scripting standard, leading to a quiet end to active development. The last known official media related to Doom X was a video showcasing the Garg enemies.
Current Status
The project's Mod DB page still exists, but the listed official website now redirects to a phishing site and should be avoided. No updates have been made since the mid-2010s.The project is occasionally mentioned in community retrospectives on promising but unfinished ZDoom projects.
Conclusion
Doom X stands as a testament to the ambition and creativity of the Doom modding community, even though it was never completed. Its remaining assets have found a second life in other community projects, but the full vision of the 32-map campaign remains unreleased. Unless Melvin Flynt returns to complete or revive it, Doom X will remain an intriguing "what-if" in the history of Doom mods.
Resurrection
The project is now however as of 2025 being revived by a new author named Doctor Doomer. He has begun to salvage lost resources by recreating them from old footage and various other obscure sources - such as the Death Dealer being found from a courteous modding enthusiast who attempted to revive the project himself.
In 2025 many assets have been recreated, ranging from the Elite Imp, Exploding Imp, Aiken Zombieman, Trite Mother, Dark Vixen and Sinstress. Other assets will be recreated as part of this process. Many screenshots have been salvaged from the Wayback Machine of the old DoomX.net website, and will be used to recreate the lost levels. The project reviver has begun adding additional custom enemies also, such as the Supreme Cacodemon.
Doctor Doomer also managed to contact Pierre Ramirez and has been informed that he is still working on the original project, including some new monsters called the Death Elemental, the Varg and also the Cherub. The project is not abandoned. As such Doctor Doomer is focusing on two projects - a brother to the original Doom X called Doom X Resurrection and a sequel Doom X2.
The Future
Doctor Doomer is committed to completing the Doom X project and is actively working on the project. This website serves to host status and progress updates as the project grows. He is open to any collaboration to help complete this mod which started nearly 30 years ago.
Doom X Resurrection will focus on three episodes with nine episodes each. Episodes are called Nexus, Hellborne and Voidspire. Doom X2 will focus also on three episodes with twelve episodes each. Episodes are called Power of Chaos, Throne of Ashes and End Of Damnation.