Popular games built on game engine ZDoom

In development since 2010, the 18th Cacoward winner and Moddb 2012 MOTY Editors Choice of Creativity Award Brütal Doom takes Doom into a whole new level. It makes the game much more violent than before. There's much more blood, plus it adds unique gibs, death animations, dismemberments, headshots, executions, fire and explosion particles, flares, and much more. The whole world becomes more real and interactive.You can kick severed limbs and heads (and sometimes, use it to activate some traps in the map earlier, or even kick them against enemies to do some damage), you can shoot enemies' heads to deal more damage (and cause more gruesome deaths) you can destroy most things in the the scenario (trees, lamps, hanging bodies, etc), you can paint the floor, the walls, and even the ceiling with blood, you can push the explosive barrels to make traps, or grab them and use like an explosive weapon, you can silently take down enemies from behind and perform stealth kills, the chainsaw actually cuts the enemies in two. When you find the berserk pack and get super strength, you can perform cinematic executions and RIP AND TEAR your foes with your bare hands. Some enemies will scream in anguish and try to crawl away when near death, and they can be used as human shields, and much, much more. Everything in Brutal Doom is extremely intense. Everything sounds louder, looks bigger, moves faster, and hits harder. You can even fell the impact of explosions. Enemies are harder and smarter, and weapons and explosions are much louder. Your weapons have been upgraded to a deadly arsenal, completely throwing the vanilla Doom's "progressive weapon system" through the window. Every weapon is powerful and have it's pros and cons, a a weapon will never be outclassed when you find a new weapon, but only find a different use for different situations, making Brutal Doom more balanced and more strategic than Vanilla gameplay. You have new abilities too. With any weapon selected, you can press Q (default bind) to kick enemies at close range and send them away. Every new feature and weapon is cautiously balanced, and added in a way that makes sense in the universe of Doom. Many of the features can also be disabled/enabled to provide the best personal experience possible.

The Sigil Megawad is free download created by John Romero for the original 1993 Doom. It contains nine single-player and nine deathmatch levels. The free megawad will be released in mid- May 2019 and requires players own the original 1993 registered version of Doom in order to play. The SIGIL Megawad is the spiritual successor to the fourth episode of Doom, and picks up where the original left off.

Grezzo 2 is a first-person shooter video game developed by Italian game designer Nicola Piro and released in 2012. The game is a total conversion modification of the 1993 video game Doom and its development began in the early 2000s, with the version called Grezzo 1, when Nicola Piro attended high school. The plot follows the adventure of pagan farmer Piro which, annoyed and disgusted by Christianity, plans to kill Jesus Christ to prevent the rise of his religious phenomenon. Gameplay requires the player to face various levels, defeating enemies and bosses and using a wide range of weapons. Many well-known personalities of the culture of Italy appear in the game, as well as references to extremely satirized social, political and religious issues of the country. Following the 2012 release, Grezzo 2 received significant attention, both inside and outside of its country of origin, due to its extremely blasphemous, vulgar and violent content.

The City of the Damned is a single-level PWAD for Doom II that requires the ZDoom source port. It was designed by Daniel Gimmer (Tormentor667) in 2004, last updated in 2005, and uses an unnamed music track by Lexus Alyus. The par time defined in MAPINFO is 23:15. In 2020 it received a v2.0 update for GZDoom, and a sequel called The City of the Damned: Apocalypse was released in 2007.

MassMouth is an alien from the planet Zeeble (a zeebloid). He has a small, green body with a large mouth. MassMouth is an employee of The Worm, a rich alien with his own personal moon. The Worm employs MassMouth to bring him various valuable items. MassMouth is very well-paid and has his own personal room.

The Wayfarer is not your grandparents' Heretic. It includes a built-in gameplay mod that rebalances the game in ways that are mostly subtle but make the game a lot more engaging to play. Many enemy attacks are more dangerous, and most of the player's weapons are more powerful, allowing certain weapons to have more useful combat niches and eliminating the grindiness associated with vanilla Heretic's weapon/monster balance. The episode also features two new standard enemies, two new artifacts, a new weapon, plenty of custom decorations and textures, and more.

Saturnine Chapel, also known as MNENMA 0 is a single-level PWAD for Doom II that requires a Boom-compatible source port to play. It was designed by Darryl Steffen (dobu gabu maru) and uses the music track "Egypt," by Zachary Stephens (Ribbiks). It received one of the 2017 Cacowards.

Scythe 2 is a 32-level megawad for Doom II. Released by Erik Alm in June of 2005. It was re-released July 10th 2009 with the three missing levels. It has been regarded by many as a spiritual successor to Scythe rather than a direct sequel. While the original featured small, action-packed levels, Scythe 2 is filled with large, complex and detailed maps, and is sometimes compared to the style of Alien Vendetta.

A fast paced gameplay mod for the original Doom games, created by TerminusEst13, revolving heavily around melee combat

While driving in the middle of the night, a mysterious figure in the dark wanders into the path of your car, making you turn and crash into a wall, having no way back you begin searching for help, but only for you to find a psychotic infestation...

Harmony is a 11-level stand-alone total conversion, created by Thomas van der Velden (t.v.) and released after five years of development. In its updated 1.1 version, it is recognized as an IWAD by ZDoom 2.4.0 and newer. The soundtrack consists of three songs from Kyū's album "The Edge" (2009), specifically track #6 ("Untitled", used on MAP02, MAP03, MAP10 and MAP11), #7 ("Mercury Stripes, Blue Mess", used on MAP01, MAP04, MAP05, MAP08 and MAP09) and #10 ("The Edge", used on MAP06, MAP07, and the intermission, endgame and title screens). James Paddock (Jimmy) later created an optional MIDI pack providing a new, original soundtrack composed specifically for Harmony.

Speed of Doom is a 2010 megawad by Josh Sealy (Joshy) and Darkwave0000, which requires a Boom-compatible source port to play. It features 33 levels, including one level accessible only through cheating, inspired by Plutonia, Plutonia 2, Hell Revealed, Hell Revealed II, Alien Vendetta, Kama Sutra, Scythe and Scythe 2.

Wolfenstein 3D Total Conversion for Doom is a total conversion of Wolfenstein 3D to the Doom engine. The main objective of the project was to recreate Wolfenstein 3D in a more modern 2.5D engine, while still preserving the original gameplay, weapons, enemies, etc.

The Adventures of Square is a standalone first-person shooter using the ZDoom Engine, featuring real, retro first-person-shooter gameplay, in the vein of older shooters like Doom. The brilliant Doctor Octagon has been kidnapped! Square must find him, and rescue him from the clutches of the Circle of Evil, a mysterious cult hellbent on the domination of Shape Land. He will square off against terrible monsters and impossible traps in order to prove that he's no square when it comes to justice. Guide him to the center of the Circles' domain, unravel their malicious plot, and win the day fair and square! Save anywhere and at anytime! Food is health! No ragdoll physics! It has it all!

Action Doom 2: Urban Brawl is a computer game released in September 2008 which runs using the ZDoom source port. It was mainly developed by Stephen Browning, with ACS scripting by Mike Watson and James Bauer. It is the prequel to the 2004 total conversion Action Doom, but has a different gameplay style. Whereas the original Action Doom was a sidescrolling shoot 'em up using Doom's first-person perspective, Action Doom 2 instead simulates a beat 'em up.

Cold as Hell is a total conversion for Doom II set in a fictional military research facility in Greenland in the 1950's.

A standalone freeware First-Person Shooter powered by ZDoom.

The most avant-garde Doom will ever get. Obviously not a WAD for everyone, the core target for such a mod is mainly people who are in video game glitches, corruptions and to some extent, creepypastas (whether that love is ironic or not). Nothing works as it is supposed to. You can hardly understand most of the things that are happening to you. Some of the custom monsters (like the hitscanning corrupted pinky) will put you on edge and keep you paranoid about the ruleset of the game. The aesthetic of lilith.pk3 is one of a kind, horribly mangling the rendering engine of old ZDoom beyond belief to disform sprites, textures, text and even sound effects. The end result makes close to no sense, your Doom marine sprite is heavily dislocated and looks more like one of those creatures from Alien than a human being and the list goes on and on. The confused looks obviously doesn't always make for clean or concise gameplay, especially in later levels which crank the confusion up to eleven and manipulate the level geometry to do things you thought weren't possible in the game. Even basic things like crushers, slime pits or a turnstile look horribly out of shape and makes the player uncomfortable. This is essentially what lilith boils down to: an unfamilarity to something we thought we knew by heart, a rising sense of uncomfort as the level design makes less and less sense and offering the player a new perspective on what Doom is. Don't play lilith expecting top-notch Doom gameplay, but play it for the one of a kind experience it offers you. For the better and for the worse, there are no WADs like lilith anywhere and there will never be.

Like the first, you are stranded in the middle of a dark forest with a monster somewhere. A monster you must kill. This time it is a little different however, and a lot harder. You only have a super shotgun to kill the Ghoul and ammo for the shotgun is scattered around the forest. You start in the middle this time and the Ghoul comes from the outside area. The new Ghoul "Sjas" is faster, hardly visible and will kill you in a single melee attack. He also teleports away when hit. You must rely on sound to defeat him as the only way of knowing if he is near is by his signature screaming sound. The Ghoul's Forest 2 gained much more attention than the first wad of the series. It inspired many people to make spin-offs, maps and even their own "non-ghoul" horror wads.

Hurt hellspawn with most overpowered and ludicrous arsenal in history, such as portable tank cannons, borscht-spewing lazer cannons, medieval maces, slamming ammo packs in monsters face (and then exploding it), fists made of shovels, gesture-coming-true device (TM) (aka. shooting fists), fart mines, inconspicuous superpowered revolvers, huge nuclear-powered energy cannons, miniguns shooting fighter jets that drop bombs!... and of course, nukes coming in all kinds of flavors (sometimes in a moment you would rather not expect a one). And that all is just the tip of the iceberg of madness that is Russian Overkill. If you feel like going nuts after a day of work or school and want the stress out of your system - this mod is for you.

ECWolf is an advanced source port for Wolfenstein 3D, Spear of Destiny, and Super 3D Noah's Ark based off of the Wolf4SDL code base. ECWolf pulls a substantial amount of code from ZDoom and aims to provide a wide array of mod editing capabilities without the need to modify the source code. For players, ECWolf provides many useful features such as better control binding, support for wide screen resolutions, and unlimited save slots.

Scourge of Viscerus is 7-level hub-based mod for Hexen. It was created by Matt Tropiano (MTrop) and released on July 1, 2010. Set several years after the defeat of the Deathkings, the players must venture out to stop a demon named Viscerus, who seeks to resurrect them in order to conquer the world of Cronos. Scourge of Viscerus features new boss enemies and new music tracks.

Daedalus: Alien Defense is a 32-level megawad released in 2003 by TeamTNT as a sequel to Icarus: Alien Vanguard. Originally developed as "Doom 2000", it was the first ZDoom mod created by TeamTNT.

Reelism is a tongue-in-cheek variation on the "invasion" gameplay. It offers large, wide-open maps in which random monsters and weapons will constantly spawn during themed rounds. The "reel" mechanism also provide other game-changing effects which can help or, usually, hinder the players. Everything is filled with homages to classic gaming, in-jokes, and all-around silliness. The extreme randomness of the mod makes the gameplay rather unpredictable, since it is possible to obtain extremely unfair combinations as well as ridiculously easy ones.