Popular games built on game engine ZDoom

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.

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.

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.

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.

Zen Dynamics is a 2005 ZDoom partial conversion created by Xaser. It was created to demonstrate an implementation of weapon reloading in ZDoom, 7 years before it was officially and fully implemented as a weapon state. The game also includes features such selecting and deselecting frames, cutscenes, new monsters, new levels, new sounds, and 13 new weapons. Most of the levels are based on unfinished levels created by Malcolm Sailor which were released in 2000 in the "Assorted Scraps and Leftovers" collection. At the 13th Annual Cacowards, this WAD was listed as a runner-up alongside Oniria.

HDoom is a pornographic modification, being developed by Mike12 (aka HDoomGuy), for Doom. The modification replaces the game's weapon and enemy animations with hentai, turning most demons into nude female counterparts and adding adult animations for the Doomguy. It also features a work-in-progress visual novel system. Currently, the latest version available is tech demo 9 build.

The independent video game Delaweare is a free ZDoom based first person shooter in which the emphasis is put on visual and audio experiences. The aim of the game is to explore its strange world to collect all music tracks.

Stardate 20X7 is a set of eleven Boom-compatible maps released by Zachary Stephens (Ribbiks) in 2017. It continues the purple theme of Stardate 20X6, with the colour purple this time replacing the blue range of the palette, however it was not initially intended as a sequel.

MassMouth must embark on a journey to save his boss, The Worm, who is kidnapped by a mysterious group of aliens.

Stardate 20X6 is a set of eight Boom-compatible maps released by Zachary Stephens (Ribbiks) in 2013. The WAD is notable for its use of the colour purple, which replaces many of the green colours in the palette. Development started at the end of 2012, continuing for six months until it was uploaded to the idgames archive on 2 June, 2013. The WAD received one of the 20th Annual Cacowards.

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.

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!

A standalone freeware First-Person Shooter powered by ZDoom.

Mayhem Mansion is a Doom total conversion project (and standalone on gamejolt) developed by Darsycho. It is inspired by an obscure FPS game known as "Exploding Lips" and uses many resources from the game.

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.

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.

Chex Quest 3 is the newest edition to Chex Quest, a series of comedic sci-fi shooter games. It contains slightly updated versions of the maps from Chex Quest and Chex Quest 2, in addition to new maps.

Nocturne in Yellow is a fantasy medieval first-person shooter using an extremely modified version of the idtech1 engine, also known as the Doom engine. In it, you play as a dude marching through ancient castles with the realization that every myth and story ever made in the history of man is true and all of them are pissed off at you for having a pulse and four functional limbs. You utilize a bow, some grenades, and a spear in order to fend them off, wandering deeper to stop the rise of the dark lord threatening to spread death, destruction, and hurt feelings all around. Being a first-person shooter, you step into the eyes of a protagonist and wield whatever weapon he was smart enough to grab before wandering off on this death quest. Primary fire, well, fires whatever weapon you're using, while secondary fire lobs a grenade at whatever looks funny at you. Run around through seven maps, picking up items and stabbing dudes before reaching a boss at the end, and then stab the boss. Boss drops artifact, pick up artifact for more powers for your bow, and then move on to the next level to repeat as needed. After you do this seven times, you win! If you play on Story Mode, occasionally there will be long walls of text about people talking about their feelings. If you play on Arcade mode, all of the boring text will be stripped out, leaving you free to stab enemies without hearing about their failed love life.

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.

An influential Doom megawad known for its detailed and challenging level design. Alien Vendetta (aka AV) is a megawad that contains 32 new and hard levels. The levels are full of details and monsters. It is also one of the few PWADs that are allowed to be used in Compet-N speed runs. There have been two separate releases of Alien Vendetta. The second release, made when it was selected for usage on Compet-N, made various changes to almost all of the levels; the biggest change is the replacement of MAP25: Valley of Echoes with another map, MAP24: Clandestine Complex, as well as the relocation of the former MAP24: Demonic Hordes to MAP25.