Scheduled for release in 1988, this was set to be coder Paul Holmes' first commercial game. An early demo was released before tragedy struck - CRL went into administration, amongst other things - and Holmes left CRL. Reportedly, Holmes re-used some of the code from this game for his 1991 release of HUNTER.
 The game was planned for release by Scorpion in the U.S. as ATTACK ON LONDON.
 SIEGE ON LONDON (demo) is available for download HERE [Source: Amiga Games that Weren't (aGTW)].
 More info. about SIEGE ON LONDON, including an interview with main coder Paul Holmes, can be found HERE [Source: aGTW].