Games like Spacegolf!
Games like Spacegolf! include Golf With Your Friends, Golf It!, Donut County, There Is No Game: Wrong Dimension, and Zup! S. We matched them by the tags players give Spacegolf! on Steam (Golf, Mini Golf, Space, Story Rich, and Physics): closest matches first, and among equally close ones the better-known games.

Golf With Your Friends
Shared: Mini Golf · Golf · Casual

Golf It!
Shared: Mini Golf · Golf · Casual

Donut County
Shared: Casual · Physics · Puzzle

There Is No Game: Wrong Dimension
Shared: Puzzle · Story Rich · Casual

Zup! S
Shared: Casual · Puzzle · Physics

Walkabout Mini Golf VR
Shared: Golf · Mini Golf · Sports

Super Battle Golf
Shared: Golf · Physics · Sports

World of Goo
Shared: Physics · Puzzle · Casual

Outer Wilds
Shared: Space · Story Rich · Puzzle

Golf Around!
Shared: Golf · Mini Golf · Physics

Zup! X
Shared: Casual · Puzzle · Physics

Portal
Shared: Puzzle · Physics · Story Rich

Defy Gravity Extended
Shared: Space · Puzzle · 2D

Zup!
Shared: Casual · Puzzle · Physics

WHAT THE GOLF?
Shared: Physics · Mini Golf · Casual

Machinarium
Shared: Puzzle · Story Rich · 2D

Human Fall Flat
Shared: Physics · Puzzle · Funny

Zup! F
Shared: Casual · Puzzle · Physics

Little Inferno
Shared: Casual · Puzzle · Indie

Zup! 2
Shared: Casual · Puzzle · Physics

Zup! 3
Shared: Casual · Puzzle · Physics

Garry's Mod
Shared: Physics · Casual · Funny

Gorogoa
Shared: Puzzle · Casual · Indie

Broken Age
Shared: Story Rich · Puzzle · Casual