Are you playing it on the PC Bri?
Yes, I'm playing it on the lowest recommended spec machine and it still looks pretty good.
The sound track/score is great too. I occasionally stopped mid-horror trip to listen to the music (Django Reinhardt + Stephane Grappelli most memorably) playing around rapture.
The weapons are fun to use too, and include a 'Webley' type pistol, a Thompson sub-machine gun, a shotgun which can fire either regular buckshot, exploding buck or electric buckshot, a grenade launcher which fires proximity mines, frag grenades and heat-seeking missiles, a chemical thrower - (napalm, liquid nitrogen or an 'electric gel'), a neat repeating crossbow - (steel tipped bolt, incendiary bolt or electic tripwire bolt).
I love this game.

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