There's all sorts for me - they're all great in their own right:

Repton - BBC
Elite - BBC
Strykers Run - BBC (Never completed it even in 20 years )
Shadow Warrior - PC
Quake - PC
F19 Stealth - PC
Doom - PC
Worms - PC
Lemmings - PC
Star Wars Replublic Commando - PC
Far Cry - PC
All Colin McRae - Playstation & 2
Overboard - Playstation - (Still stuck on this!)
Abes Oddessey - Playstation (Still stuck on this!)
Quake III Arena - PC
Unreal Tournament - PC
TOCA Touring Cars 2- Playstation (so many hours whiled away in front of that one!)


Superior Software, who wrote Repton, Ravenskull, and Strykers Run (and more besides) for the BBC many years ago are still alive, now called Superior Interactive, and have redone some of their games to run on the modern PC.