Games like Little Green Frog
Games like Little Green Frog include Celeste, Super Meat Boy, SANABI, VVVVVV, and Downwell. We matched them by the tags players give Little Green Frog on Steam (Adventure, Casual, Platformer, 2D Platformer, and Precision Platformer): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · Platformer · Pixel Graphics

Super Meat Boy
Shared: Platformer · Precision Platformer · 2D Platformer

SANABI
Shared: Adventure · Pixel Graphics · 2D Platformer

VVVVVV
Shared: Platformer · Precision Platformer · Pixel Graphics

Downwell
Shared: Precision Platformer · Platformer · Pixel Graphics

Webbed
Shared: 2D Platformer · Pixel Graphics · Platformer

Jump King
Shared: Adventure · Precision Platformer · Platformer

FEZ
Shared: Platformer · Adventure · Pixel Graphics

BEEP
Shared: Adventure · Platformer · 2D

DAVE THE DIVER
Shared: Casual · Adventure · Pixel Graphics

Sonic Origins
Shared: Adventure · 2D Platformer · Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Indie

Hollow Knight
Shared: Platformer · 2D · Adventure

Rain World
Shared: Platformer · Pixel Graphics · Adventure

The End Is Nigh
Shared: Platformer · Precision Platformer · Adventure

Shovel Knight: Treasure Trove
Shared: Platformer · Adventure · Pixel Graphics

Thank Goodness You're Here!
Shared: Adventure · Casual · 2D Platformer

Dead Cells
Shared: Adventure · 2D · Pixel Graphics

Reventure
Shared: Adventure · Platformer · Pixel Graphics

Katana ZERO
Shared: Platformer · Pixel Graphics · 2D Platformer

Owlboy
Shared: Adventure · Platformer · Pixel Graphics

There Is No Game: Wrong Dimension
Shared: Adventure · Casual · Indie

Neva
Shared: Adventure · Platformer · Indie

Chained Together
Shared: Adventure · Platformer · Casual