Games like Mello
Games like Mello include Thank Goodness You're Here!, Pizza Tower, Webbed, Thomas Was Alone, and CHUCHEL. We matched them by the tags players give Mello on Steam (Side Scroller, 2D Platformer, Platformer, 2D, and Cute): closest matches first, and among equally close ones the better-known games.

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

Pizza Tower
Shared: 2D Platformer · Platformer · Funny

Webbed
Shared: 2D Platformer · Cute · 2D

Thomas Was Alone
Shared: Side Scroller · Platformer · 2D Platformer

CHUCHEL
Shared: Casual · Funny · Cute

Pikuniku
Shared: Casual · Cute · 2D

Laughing to Die
Shared: Platformer · 2D Platformer · Casual

BattleBlock Theater®
Shared: Platformer · Funny · 2D

pureya
Shared: 2D · Casual · Side Scroller

Momodora: Reverie Under The Moonlight
Shared: 2D Platformer · Side Scroller · 2D

Grapple Dog
Shared: 2D Platformer · Platformer · 2D

Slime Rancher
Shared: Cute · Funny · Colorful

Oozi: Earth Adventure
Shared: 2D Platformer · Platformer · Casual

Bing in Wonderland
Shared: 2D Platformer · Casual · Cute

Celeste
Shared: Platformer · 2D Platformer · 2D

Sonic Mania
Shared: Platformer · 2D · Side Scroller

Anomaly Agent
Shared: Side Scroller · 2D Platformer · Platformer

Montaro
Shared: Cute · Casual · 2D

Songs for a Hero - Definitive Edition
Shared: 2D Platformer · Platformer · Funny

Geometry Dash
Shared: 2D · Platformer · Side Scroller

Missing Banban
Shared: Side Scroller · 2D Platformer · Platformer

Cat Goes Fishing
Shared: 2D · Cute · Casual

Tribal Hunter
Shared: 2D Platformer · Platformer · Side Scroller

Hollow Knight
Shared: Platformer · 2D · Indie

