Sleeping Gods Lie

Sleeping Gods Lie was a first-person adventure game released on the Commodore Amiga, DOS and Atari ST, published by Empire Interactive in 1989.

It was set in the world of Tessera, a land created by the Gods, which had fallen into the control of an evil Archmage who terrorised the populace with the aid of evil demons. The player took the role of an adventurer, with a quest through eight kingdoms. The goal was to find N'Gnir, one of the sleeping Gods who created the world, and to wake him up so he could rid the world of the demons.

http://www.mobygames.com/game/sleeping-gods-lie