Games like Cult Vacui
Games like Cult Vacui include Papers, Please, OneShot, There Is No Game: Wrong Dimension, Don't Escape: 4 Days to Survive, and Undertale. We matched them by the tags players give Cult Vacui on Steam (Adventure, Indie, Point & Click, Pixel Graphics, and Replay Value): closest matches first, and among equally close ones the better-known games.
Papers, Please
Shared: Indie · Point & Click · Pixel Graphics
OneShot
Shared: Indie · Pixel Graphics · Story Rich
There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Point & Click
Don't Escape: 4 Days to Survive
Shared: Adventure · Pixel Graphics · Point & Click
Undertale
Shared: Pixel Graphics · Story Rich · Indie
The Rewinder
Shared: Adventure · Pixel Graphics · Singleplayer
The Red Strings Club
Shared: Pixel Graphics · Indie · Adventure
To the Moon
Shared: Indie · Adventure · Story Rich
Terraria
Shared: Adventure · Pixel Graphics · 2D
Unavowed
Shared: Adventure · Indie · Point & Click
Gods Will Be Watching
Shared: Indie · Point & Click · Pixel Graphics
SANABI
Shared: Pixel Graphics · Adventure · Story Rich
Sally Face - Episode One
Shared: Indie · Adventure · Story Rich
Little Misfortune
Shared: Indie · Point & Click · Adventure
Thimbleweed Park™
Shared: Adventure · Point & Click · Indie
DISTRAINT: Deluxe Edition
Shared: Indie · Adventure · Pixel Graphics
Chants of Sennaar
Shared: Adventure · Indie · Point & Click
The Walking Dead
Shared: Adventure · Point & Click · Story Rich
Fran Bow
Shared: Point & Click · Adventure · Indie
The Binding of Isaac: Rebirth
Shared: Indie · Replay Value · Pixel Graphics
Servant of the Lake
Shared: Adventure · Point & Click · Indie
Rusty Lake Paradise
Shared: Indie · Point & Click · Adventure
Finding Paradise
Shared: Adventure · Pixel Graphics · Story Rich
Deponia
Shared: Adventure · Point & Click · Indie