Deliverance is a free single-player expansion pack for Sierra's Half-Life. In Deliverance you reprise your role as Gordon Freeman in a story set after the end of Half-Life. Voted #8 in the Top Ten Half-Life Add-ons by PC Gamer magazine in May 2000.
Well, judging by the beginning, I thought this mod would be crap, but after the first map, it gets great. Definitely worth playing. It offers a well balanced classic style playing, with some tricky brain-loading parts (I had to see the walkthrough twice to get unstuck).
I found just two negatives - one: the level design looks rather empty at some places, but I considered it fair enough and suitable for the gameplay; two: I chose the left elevator to be my destiny, and I hated taking the two scientists all around. They were a burden especially at the end where those hovering creatures that shoot the yellow electric balls (don't know what they're called), the scientist who was trying to turn on the teleport just kept dying.
Yet considering the mod in general, I say you did a good job! I enjoyed playing Deliverance a lot.