[1] As the creative director at Sierra On-Line, Davis significantly advanced video game design by incorporating Hollywood production techniques.

[5] By the late 1980s, Sierra On-Line, led by Ken Williams, adopted emerging technologies such as CD-ROMs, sound cards, and VGA displays.

[5] During his tenure, Bill Davis introduced storyboarding — a method adapted from film production — into Sierra's game development process.

[5] Davis introduced traditional media such as painting and sculpting into Sierra's game design, moving away from the prevalent low-resolution digital creation methods.

Davis introduced advanced animation techniques, such as rotoscoping and squash and stretch, to improve the realism and expressiveness of character movements in Sierra’s games.

In response, he established the role of art director at Sierra to oversee and unify the visual components of games, which aimed to maintain a consistent style across various projects.