Interesting back story on Bandersnatch...
"The game that never was"
Imagine had intended to develop six so-called "Megagames", the most well-known of which were
Psyclapse and
Bandersnatch. These games were designed to push the boundaries of the hardware of the time, even to the extent that they were intended to be released with a hardware add-on which would have increased the capabilities of the computer, as well as guarding against
piracy. The games were advertised heavily and would have retailed at around £30 - an expensive price tag when the average price of a game at the time was £7.20 - but Imagine's collapse meant that they remained
vaporware and never saw the light of day.
https://en.m.wikipedia.org/wiki/Imagine_Software