Freaks is a 3D game for MS/DOS written in 1993 by me and my friends Manuel Zamora and Antonio Guerrero. It was released as shareware; now you can download it for free. It's a complete game with 4 big episodies and a great variety of monsters (but somewhat crappy for today's standards).
http://triptico.com/download/freaks14.zip
It also has a ton of screenshots:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14.
And a photo of the development team:
The Incredibly Astonishing Freaks Trio.
Left to right: Manuel Zamora and Angel Ortega (as demons in flames), Antonio Guerrero (as a glittering cherubin).
