Description official descriptions
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.
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Credits (DOS version)
10 People (9 developers, 1 thanks)
|Map Design by|
|VGA Routines by|
|Music Interface by|
|Special Thanks to||
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.
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
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, its 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.)
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) which allows to play all the music from the game.
Information also contributed by Scaryfun, Tomer Gabel, WildKard, Xantheous, Yakumo and Zovni.
Related Sites +
Alien Carnage v1.0
official game page from 1996, preserved by the Wayback Machine
A short, humorous review on PC Gamer
The Halloween Harry Webshrine
A fan site dedicated to all the games in the Halloween Harry series.
- MobyGames ID: 522
- Steam App: 358280
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Contributors to this Entry
Game added by Accatone.
Windows added by 666gonzo666. Macintosh added by Koterminus.
Additional contributors: Derrick 'Knight' Steele, Frenkel, Cantillon, Patrick Bregger, piltdown_man, Joseph Collins, Plok, MrFlibble.
Game added December 4th, 1999. Last modified June 1st, 2023.