Arcanum - 5 & 15

4,9,10,13,18,20, 22, 24, 25, 26, 27, 28, 37, 38, and 39 are all that are left for right now.

Alright, here's the next set of clues.

--I'm not changing the listing between rounds, so use previous answers to help you decide what games to guess!
--I have 2 Infinity Engine games, 3 Build Engine games, 3 Wolfenstein Engine games, and only one RTS.
--Space sims, as well, are in short supply, the only two I own having come in discount pack some time back.
--Between bonus content and normal content, I have six titles that contain more than one game.


Now, for location clues:

--The first row is bookended by games that are companions
--Of the five titles in the second row, there are only three separate series
--The word "blood" appears in at least 3 game titles in my collection.
--A young wizard stands before the island that guards a mysterious book.


Earlier clue correction:

I said the golden beings from outer space guard the gates of the great city, when in truth they await just beyond.

I must sleep now, so if that was a reset, I will now go with Planescape: Torment at positions 22 and 27.

Baldur's Gate # 25
Baldur's Gate 2 # 26

Alright... I am confused now...

Planescape Torment 6

Icewind Dale 9

Blood 30
Rise of the Triad 31

One Unit Whole Blood 10
Planescape Torment 20

It wasn't a reset at the time, but we'll call it one now since I have to head out for work in 15 minutes, meaning I won't be checking in again for eight to ten hours.

Since I gave so many clues so recently, I'll only give one with the reset:

--14 is a free title

Duke Nukem 3D at #28

14 - Lure of the Temptress.
1 - Gothic.

Arcanum at 7 and 11

29) Neverwinter Nights Diamond

37) Baldur's Gate: The Original Saga

That would have been my second guess, but I already took 14 :P

Baldur's Gate #34 #28