Games like Marvin's Mittens
Games like Marvin's Mittens include Florence, Slime Rancher, Pikuniku, Donut County, and Slime Rancher 2. We matched them by the tags players give Marvin's Mittens on Steam (Indie, Casual, Adventure, Platformer, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Florence
Shared: Indie · Casual · Adventure

Slime Rancher
Shared: Adventure · Cute · Singleplayer

Pikuniku
Shared: Indie · Casual · Adventure

Donut County
Shared: Indie · Casual · Cute

Slime Rancher 2
Shared: Singleplayer · Cute · Adventure

A Short Hike
Shared: Indie · Adventure · Casual

Kao the Kangaroo: Round 2 (2003 re-release)
Shared: Adventure · Casual · Platformer

Hollow Knight
Shared: Platformer · Indie · Singleplayer

FEZ
Shared: Indie · Platformer · Adventure

Woodle Tree Adventures
Shared: Indie · Adventure · Platformer

Toki Tori
Shared: Indie · Casual · Platformer

BEEP
Shared: Indie · Adventure · Platformer

A Story About My Uncle
Shared: Adventure · Indie · Singleplayer

Yoku's Island Express
Shared: Adventure · Platformer · Indie

The Last Campfire
Shared: Adventure · Indie · Singleplayer

Hollow Knight: Silksong
Shared: Indie · Singleplayer · Platformer

Scribblenauts Unlimited
Shared: Casual · Adventure · Singleplayer

LEGO® Builder's Journey
Shared: Indie · Casual · Cute

Ori and the Will of the Wisps
Shared: Platformer · Singleplayer · Adventure

Castle of Illusion
Shared: Adventure · Platformer · Casual

A Hat in Time
Shared: Cute · Indie · Adventure

GRIS
Shared: Indie · Adventure · Platformer

Costume Quest
Shared: Adventure · Casual · Singleplayer

Chained Together
Shared: Adventure · Casual · Platformer