Games like IMUGI
Games like IMUGI include Bloons TD 6, Black Myth: Wukong, Mirror 2: Project X, Boxes: Lost Fragments, and Hero of the Kingdom. We matched them by the tags players give IMUGI on Steam (Casual, Point & Click, 3D, Isometric, and Mythology): closest matches first, and among equally close ones the better-known games.

Bloons TD 6
Shared: Casual · Singleplayer · 3D

Black Myth: Wukong
Shared: Mythology · Singleplayer · 3D

Mirror 2: Project X
Shared: 3D · Singleplayer · Casual

Boxes: Lost Fragments
Shared: Point & Click · Casual · 3D

Hero of the Kingdom
Shared: Casual · Point & Click · Isometric

Hidden Folks
Shared: Casual · Point & Click · Singleplayer

Sizeable
Shared: Casual · 3D · Singleplayer

Unpacking
Shared: Casual · Singleplayer · Point & Click

Monument Valley
Shared: Casual · Singleplayer · 3D

Hero of the Kingdom II
Shared: Casual · Point & Click · Isometric

PowerWash Simulator
Shared: Casual · 3D · Singleplayer

Rogue Tower
Shared: Casual · 3D · Singleplayer

Disco Elysium - The Final Cut
Shared: Isometric · Point & Click · Singleplayer

The Room
Shared: Point & Click · Singleplayer · Casual

The Room 4: Old Sins
Shared: Point & Click · Singleplayer · 3D

That's not my Neighbor
Shared: Casual · Point & Click · Singleplayer

There Is No Game: Wrong Dimension
Shared: Point & Click · Casual · Singleplayer

Game Dev Tycoon
Shared: Casual · Singleplayer · Point & Click

Poker Night at the Inventory
Shared: Casual · 3D · Singleplayer

Jotunnslayer: Hordes of Hel
Shared: Casual · Isometric · Singleplayer

Hero of the Kingdom III
Shared: Casual · Point & Click · Isometric

Gorogoa
Shared: Casual · Point & Click · Singleplayer

Rhythia
Shared: Casual · Point & Click · 3D

12 Labours of Hercules
Shared: Casual · Mythology · Singleplayer