I'd say
Shadow Warrior is pretty average (or slightly above average), but it has enough pros to make it an enjoyable game. The Build engine got a few neat upgrades compared to
Duke Nukem 3D, like voxel models for item pickups, transparent water and more realistic underwater movement (with inertia), air and boss health meters, drivable vehicles and stationary mounted guns that can be used by the player, alternate firing modes for most weapons, gun shells staying on the ground etc. etc. Still, it turned out to be not enough to make a real competition for
Quake, although personally, I believe that Duke was right "[not to be] afraid of no quake"
The levels are quite large and well designed, and the weapons diverse (even though some of the more exotic weapons
are weird). The enemies are a bit more boring, with a noticeable amount of palette swapping, and some feel rather out of place (like the three varieties of the giant gorilla).
As for the story and character design, the developers quite obviously went for exploiting various Asian-related cliché's much like Duke humoured out macho type cliché's. Yet the instances when the devs
did not do the research are quite plentiful, and Lo Wang's humour often balances on the verge of vulgarity, if not crosses the line a couple of times.
At the web.archive.org's copy of
3drealms.com from 1996, you can still find the old
Shadow Warrior page and the weekly development updates with screenshots:
Shadow Warrior - Coming from 3D Realms
Shadow Warrior Development Update - Mar '96
Shadow Warrior Development Update - Apr '96
Shadow Warrior Development Update - May '96
Shadow Warrior Development Update - June '96
Shadow Warrior Development Update - July '96
Shadow Warrior Development Update - August '96
Shadow Warrior Development Update - September '96
Shadow Warrior Development Update - October '96
Shadow Warrior Development Update - November '96
Shadow Warrior Development Update - December '96
The storyline was supposed to be quite different, and so were some of the enemies, the main character's appearance, and weapons, which included a wrist blade and a crossbow, while the riot gun's sprite seems to have been used for a Gatling type machine gun.
There are also official pre-release screenshots of
Shadow Warrior, some in high resolution:
Hocus Pocus Preview Slideshow (has two early
Shadow Warrior screenshots)
Duke Nukem 3D & Shadow Warrior Preview Slideshow
Shadow Warrior Preview Slideshow
Screenshots from the Duke Nukem 3D v1.3D CD
Screenshots from the Duke Nukem 3D v1.5W CD
A modern compilation of screenshots taken from various sources
There's also the leaked beta (v0.90) of the game, which contains quite a few media (tiles, actor graphics, sound effects and even two MIDI music tracks by Lee Jackson) that were cut from the final release of the game. Since I haven't figured out the forum policy regarding the discussion of leaked material here, I don't post the link right now, but there's a site by
Hendriks266 who put out all the beta media for preview.