andrewelmore just gotta say neither GTA nor mega turrican are British!
Hidden cool stuff: tinhead, a sonic-like by some folks who went on to work on uncharted
The early traveller’s tales games like galahad
Syndicate (maybe too obvious)
Power drive rally
I make a lot of fun of the British but there’s some really solid stuff there. I daresay as much influence as Paradise Killer takes from Japanese games, it takes even more from ambitious Amiga games, weird oc/ps1 experiments, and weirder western rpgs. Also, I think paradise killer counts for this!