The Waterfront (Wtrfront.Wad) is a level created by Scott F. Crank in May 1995. It is often considered the earliest level to deliberately exploit the ghost monster bug, which its text file calls the "arch-vile bug"
Obituary is a May 1995 Doom II megawad by The Innocent Crew. It contains 17 new single player levels, three new monsters via a DeHackEd patch, some new graphics, and an optional weapon patch which replaces four weapons. Two new deathmatch maps are included as well.
Infinity (INFINITY.WAD) is a Doom episode replacement mod of eight levels, created by Bjorn Hermans and Holger Nathrath. It replaces episode one of the game, and is a sequel to Serenity and Eternity by the same authors
This game is based on classic Atari shoot-'em-up Demon Attack. This is a sequel of Mutant Space Bats of Doom and have 66 stages, arrenged in some sort of pattern and includes extra items what increase your power fire. The enemies are fly space mutant demons who attack your ship in a coordinated movement.
BF_THUD!, which stands for The Big, Friendly THUD!, is a 1995 megawad for Doom II. It was designed by Christen Klie, and includes half a dozen levels from his earlier ChrisK, which was itself based on his earlier Chris_E1, and which were also re-used in The Lost Episodes of Doom.
You've been dropped in the maintenance area of enemy headquarters. You've got to find your way out, cross the interdiction zone, and destroy enemy HQ by locating and pressing the well guarded security destruct switch.
Eternity (ETERNITY.WAD) is a Doom episode replacement mod of eight levels, created by Bjorn Hermans and Holger Nathrath. It is a sequel to Serenity and was subsequently followed by Infinity, the third WAD in the series
Serenity (SERENITY.WAD) is a Doom episode replacement mod of eight levels, created by Bjorn Hermans and Holger Nathrath. The WAD was followed by two sequels by the same authors, Eternity and Infinity.
A rather parodic story explains that the player has been sent on a surveillance mission to find out what happened on the nuke mine of Nexus 14, which has been infested by demons coming through a time-continuum breach, but has decided to clean up the invasion alone instead.
Galaxia is a PWAD created by Pavel Hodek. It is notable for an extensive storyline (presented in a separate file, story.txt) which serves as the basis of the WAD's design and progression, in an era when most designers did not care about story or theme. It also features a few new sound effects and two replacement music tracks.
Skycity uses new textures, graphics and new sounds for the weapons. The level is set in a sort of abandoned megastructure, similar to a large shopping mall made out of concrete and marble. Spiderwebs and noticeable signs can be found all around. The map design is complex and intricate, with several interconnected areas and pathways that the player can choose, which encourages exploration due to the non-linearity of the map, and all the hidden and secret spots that can be found. It is a very early example of a semi-realistic map trying to recreate an urban-like structure.
Doomsday of UAC (commonly known by its filename UAC_DEAD) is a single-level PWAD designed by Leo Martin Lim. As part of their 10 Years of Doom feature, Doomworld named it one of the ten best WADs of 1994.
One of the first ever fan-made Doom mods, UAC_DEAD features an attempt at creating realistic-looking vehicles and environments. It contains a replacement sky graphic, and uses careful flat and texture choices in places to simulate colored lighting. It also includes the first known instance of the self-referencing sectors trick, used to create invisible stairs.
This is level 1 of a 9 level storyline episode.
You thought it was all over after you finished the grand tour in hell after Episode 3 -- Inferno.
Well, Mars Base has sent in an urgent distress call and this time you are called again for one final encounter against the... INVASION!