Games like NEKOMIN Kittens invasion
Games like NEKOMIN Kittens invasion include Portal, Portal 2, hololive Treasure Mountain, The Last Campfire, and Donut County. We matched them by the tags players give NEKOMIN Kittens invasion on Steam (Cute, Puzzle, Arcade, Comic Book, and First-Person): closest matches first, and among equally close ones the better-known games.

Portal
Shared: Puzzle · First-Person · 3D Platformer

Portal 2
Shared: Puzzle · First-Person · 3D Platformer

hololive Treasure Mountain
Shared: Cute · Arcade · Puzzle

The Last Campfire
Shared: Puzzle · Cute · 3D Platformer

Donut County
Shared: Cute · Puzzle · Casual

Slime Rancher 2
Shared: Cute · First-Person · Casual

MiSide
Shared: Cute · First-Person · 3D

Puyo Puyo™ Tetris® 2
Shared: Puzzle · Cute · Arcade

Hatsune Miku: Project DIVA Mega Mix+
Shared: Cute · Arcade · 3D

Creature Kitchen
Shared: Puzzle · Cute · First-Person

Slime Rancher
Shared: Cute · First-Person · Casual

Pikuniku
Shared: Puzzle · Cute · Casual

Zuma Deluxe
Shared: Puzzle · Arcade · Cute

A Little to the Left
Shared: Puzzle · Cute · Casual

Cat Goes Fishing
Shared: Cute · Cats · Casual

Unpacking
Shared: Cute · Puzzle · Casual

PAC-MAN WORLD Re-PAC
Shared: Cute · 3D Platformer · 3D

Puyo Puyo™Tetris®
Shared: Puzzle · Cute · Casual

We Love Katamari REROLL+ Royal Reverie
Shared: Cute · Action · 3D

Haunt the House: Terrortown
Shared: Cute · Puzzle · Action

Bugsnax
Shared: Cute · First-Person · Puzzle

Zuma's Revenge!
Shared: Puzzle · Arcade · Action

Little Kitty, Big City
Shared: Cute · Cats · Family Friendly

Peggle Deluxe
Shared: Puzzle · Arcade · Casual