Original sentence: The 3D effect used in the game was achieved by "billboarding" (see Sprite (computer graphics)) pre-scaled images of mountains, forests, buildings etc to create the impression of a perspective correct landscape scene, available from a viewpoint of 8 points of the compass - the technique was self-described as "landscaping" The techique created a strong impression at the time, and the game received praise for its graphics; "landscaping" was also used in the sequel Doomdark's Revenge, but did not see significant further use in games
Edited sentence: The 3D effect used in the game was achieved by "billboarding" (see sprite) pre-scaled images of mountains, forests, buildings, etc.to create the impression of a perspective-correct landscape scene, available from a viewpoint of 8 points of the compass - the technique was self-described as "landscaping" The techique created a strong impression at the time, and the game received praise for its graphics; "landscaping" was also used in the sequel Doomdark's Revenge, but did not see significant further use in games