Games like ROLY
Games like ROLY include Pumpkin Jack, Yooka-Laylee, Trailmakers, Kao the Kangaroo: Round 2 (2003 re-release), and Pikuniku. We matched them by the tags players give ROLY on Steam (Adventure, Action, Casual, Collectathon, and Precision Platformer): closest matches first, and among equally close ones the better-known games.

Pumpkin Jack
Shared: Adventure · Action · Collectathon

Yooka-Laylee
Shared: Adventure · Collectathon · Action

Trailmakers
Shared: Action · Adventure · Family Friendly

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

Pikuniku
Shared: Adventure · Casual · Indie

Spyro™ Reignited Trilogy
Shared: Adventure · Action · Collectathon

Donut County
Shared: Casual · Indie · Adventure

Gang Beasts
Shared: Action · Casual · Indie

WEBFISHING
Shared: Casual · Indie · Collectathon

SpongeBob SquarePants: Battle for Bikini Bottom - Rehydrated
Shared: Adventure · Action · Casual

BEEP
Shared: Adventure · Indie · Action

ATLYSS
Shared: Adventure · Action · 3D

Bomb Rush Cyberfunk
Shared: Action · Adventure · Stylized

Wobbly Life
Shared: Adventure · Casual · Action

Funi Raccoon Game
Shared: Adventure · Casual · Collectathon

Florence
Shared: Adventure · Casual · Indie

PEAK
Shared: Adventure · 3D · Physics

Slime Rancher
Shared: Adventure · Casual · Colorful

Slime Rancher 2
Shared: Adventure · Casual · Colorful

Super Fancy Pants Adventure
Shared: Adventure · Action · Casual

TY the Tasmanian Tiger
Shared: Action · Collectathon · Adventure

Toree 2
Shared: Action · Adventure · Precision Platformer

Chants of Sennaar
Shared: Adventure · Indie · Colorful

Totally Accurate Battle Simulator
Shared: Adventure · Indie · Physics