Games like Gondola's Adventure
Games like Gondola's Adventure include Celeste, Jump King, Pogostuck: Rage With Your Friends, SANABI, and Super Meat Boy. We matched them by the tags players give Gondola's Adventure on Steam (Precision Platformer, Replay Value, Procedural Generation, Action, and Psychological Horror): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · 2D Platformer · Singleplayer

Jump King
Shared: Precision Platformer · Psychological Horror · Adventure

Pogostuck: Rage With Your Friends
Shared: Precision Platformer · Psychological Horror · Action

SANABI
Shared: Action · Singleplayer · Adventure

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

Downwell
Shared: Precision Platformer · Action · Platformer

A Difficult Game About Climbing
Shared: Psychological Horror · Precision Platformer · Singleplayer

Dead Cells
Shared: Adventure · Replay Value · Pixel Graphics

Neon Abyss
Shared: Procedural Generation · Replay Value · Platformer

BlazBlue Entropy Effect
Shared: Action · Replay Value · Platformer

VVVVVV
Shared: Precision Platformer · Platformer · 2D Platformer

The Binding of Isaac
Shared: Replay Value · Procedural Generation · Action

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Singleplayer · Platformer

SONIC X SHADOW GENERATIONS
Shared: Action · Singleplayer · Platformer

Geometry Dash
Shared: Precision Platformer · Singleplayer · Platformer

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

Katana ZERO
Shared: Action · Pixel Graphics · Platformer

I wanna be the Creator
Shared: Action · Precision Platformer · Adventure

Skul: The Hero Slayer
Shared: Action · Singleplayer · Pixel Graphics

Ambidextro
Shared: Precision Platformer · Action · 2D Platformer

The Binding of Isaac: Rebirth
Shared: Replay Value · Singleplayer · Pixel Graphics

Pizza Tower
Shared: 2D Platformer · Singleplayer · Action

Spelunky 2
Shared: Replay Value · 2D Platformer · Platformer

Ready or Not
Shared: Singleplayer · Tactical · Psychological Horror