The Chaos Engine (Amiga)

The Chaos Engine

Developer: The Bitmap Brothers
Publisher: Renegade Software
Platform: Amiga
Released in EU: March 1993

This game has unused music.
This game has unused text.

This game has a prototype article

This game has a prerelease article

To do:

Rip and summarise a LOT more of the music
Document the updated AGA version of the game

The Chaos Engine invites you to get Steamy with those Punks the Bitmap Brothers.

Sub Pages

Prototype Info

Prerelease Info

Unseen Text

The main executable for each Amiga version "ACHAOS" has the build date at the start:

Original OCS release:

28/2/1993 at 13:53:20

AGA release:

29/10/1993 at 18:5:2

CD32 release:

8/3/1994 at 15:39:0

Unused Music

The game has a huge amount of unused music. Famously the game used a pioneering dynamic music system that switches between different variations of a theme on the fly depending on what is happening in the game, and it turns out there is a large amount of unused bars of each song still present in the game files, with only around 60-70% of each song on disk actually used in the game.

Menu Music

Track	Description/Notes	Play File
3	Alternative end of level introduction fanfare with descending rather than ascending notes
7	Alternate/early shop theme
8	Version of the end of level tune with the melody of the intro/title screen music played by a crude chip instrument in parts. At the 45 second mark changes into a new part not used in the final song. This particular version of the tune is repeated throughout the file
10	Abrupt jingle
11	Another very different version of the end of level tune, also used at the end of track 8
12	Celebratory jingle. Perhaps originally intended for the completion of a level?

The last few tracks of this file also include the end sequence music, but the instruments used for the speech are missing in the intended instrument pack so this part is corrupted. They are present and complete in the end game songs files below.

End Game Music

The first 15 tracks are identical to the Menu music file

Track	Description/Notes	Play File
18	Fast paced boss fight style track

World One Music

Track	Description/Notes	Play File
13	Unused synth led pattern for first level
18	Same as 13, but with a breakbeat playing at end of pattern
20	Unused pattern consisting of only bass line and breakbeat playing with bird samples
22	Very similar to 20, but with different drums playing
23	Unused synth line with chirping insects background sound and a bar of the choir melody part
24	Deep bassline with breakbeat and chirping insects
25	Main bassline but with breakbeats and splashing water sound
27	Sparse mostly drums only pattern
28	Unused deep bass and drums pattern
29	More drum and bass
30	Even more drum and bass
31	Version of one of the main melody patterns, only with the bass dropped out and different drums up