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Alien Carnage

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Alien Carnage (also known as Halloween Harry) is a follow-up to the 1985 game Halloween Harry, created for the Microbee System by John Passfield in 1985, but it has very little in common with the original game.

In this side-scrolling platformer, earth is being invaded by aliens who turn humans into zombies in order to enslave them. Harry is the only saviour of earth, and he has to traverse different levels and rescue the kidnapped humans. There are many different weapons to collect, and most have a limited amount of ammo.


Alien Carnage DOS machine with ammo/fuel
Alien Carnage DOS Demo - Our Hero, Harry
Alien Carnage DOS Title Screen of Halloween Harry (Taken from the website of Gee Whiz! Entertainment)
Alien Carnage DOS OMFG, it's... Elvis!

Alternate Titles

  • "Halloween Harry" -- Original/Alternate title

Part of the Following Groups

User Reviews

Whoopee-doo! Apogee makes their first VGA game! DOS *Katakis* (37914)
General rule: Flamethrowers are sweeeet. HeHeHe.... DOS Zovni (9321)
It's Halloween Harry!! DOS Toadstool (50)
A truely great game! DOS Tomer Gabel (4353)

Critic Reviews

VictoryGames.pl DOS Aug 17, 2007 5 Stars5 Stars5 Stars5 Stars5 Stars 100
Hrej! DOS May 31, 2007 9 out of 10 90
FreeHry.cz DOS Jun 17, 2007 90 out of 100 90
Plné Hry DOS May 28, 2007 90 out of 100 90
Freegame.cz DOS Jun 22, 2007 88 out of 100 88
ASM (Aktueller Software Markt) DOS Apr, 1994 9 out of 12 75


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Freeware release

On May 24, 2007 Alien Carnage was released as freeware by 3D Realms with the permission of John Passfield. The game had previously been discontinued from their product line on April 21, 2000 due to it having problems running on Windows. They recommend using DOSBox to run the game on Windows 2000/XP/Vista.

Halloween Harry

Before it was named Alien Carnage, the name of the game was Halloween Harry. The name was supposedly changed so the game would have more appeal all throughout the year rather than just Halloween. The two versions play exactly the same, but Alien Carnage swapped Block 1: Office and Block 3: Sewers, as well as rotating the music for Blocks 1-3 around.


The music in Halloween Harry was done with .mod files, slightly altered to not play in a standard mod player

Release history

This game's first publicly available version as Halloween Harry was version 1.1 released on October 10th 1993. Version 1.0 of the shareware version was an incomplete version released only to a UK magazine.

When the game was released as Alien Carnage, it's version 1.0 release was released on November 2nd 1994.


The 3rd level boss, a "sentry droid", is labelled THX-1138 -- George Lucas's first movie, made even before Star Wars. (This is a common injoke in the game industry.)

Shareware content

A shareware version of Alien Carnage was released which had "Block 1: Sewers" playable. Halloween Harry's shareware version had "Block 1: Office" playable. Due to this, half the game ended up being released as shareware.


The game includes a "Studio.exe" file in its directory (originally included as a bonus for acquiring the full version of halloween harry) which allows you to play all the music from the game.

Information also contributed by Scaryfun, Tomer Gabel, WildKard, Xantheous, Yakumo and Zovni

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Contributed to by 666gonzo666 (52649) and Accatone (5183)