Delta 4

Delta 4 was a British software developer founded by Fergus McNeill, writing and publishing interactive fiction.

Some were self-published, others were released by CRL Group, Piranha Software, Silversoft, or On-Line Entertainment.

Psycho Killer is a graphic action-adventure game released by On-Line Entertainment in 1992 for the Commodore CDTV.

[6][7] Gameplay of Psycho Killer is restricted to a point-and-click interface, such as clicking certain arrows to go their respective direction.

[6][7] In issue 32 of Amiga Format, the reviewer gave the game 13% and complained of "poor gameplay",[6] comparing it to an "interactive home movie" and asked who would want to play a game featuring a "spotty herbert who drives a Vauxhall Chevette".

The first out of many quick-time events in Psycho Killer . The player must click the brake to stop the car. If the player fails to do this in time, the protagonist drives into the idle car, making it explode and triggering a game over .