I just found this Windows XP remake of Atic Atac -

http://retrospec.sgn.net/game-overview.php?link=atic

Great game on the ZX Spectrum, this remake hasn't quite got the same level of gameplay as playing it on a real Spectrum but still a good attempt.

Just goes to show, it's not the technology - it's the gameplay. On the Spectrum it's spot on, best played with a Kempston joystick, the Competition Pro 5000.

And funny enough, I think the graphics were better on the original Spectrum as well.

They had more style and character.