Games like The Sky Climber
Games like The Sky Climber include Megabonk, Skul: The Hero Slayer, Vampire Survivors, ALTF4, and Rogue Legacy. We matched them by the tags players give The Sky Climber on Steam (Indie, Casual, Platformer, Retro, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Indie · Roguelike · Singleplayer

Skul: The Hero Slayer
Shared: Indie · Platformer · Action

Vampire Survivors
Shared: Indie · Casual · Singleplayer

ALTF4
Shared: Runner · Survival · Platformer

Rogue Legacy
Shared: Indie · Platformer · Singleplayer

Shovel Knight: Treasure Trove
Shared: Platformer · Indie · Retro

Haste
Shared: Runner · Singleplayer · Fast-Paced

Rogue Legacy 2
Shared: Platformer · Indie · Action

BEEP
Shared: Indie · Platformer · Singleplayer

Minimalism
Shared: Indie · Casual · Platformer

Hollow Knight
Shared: Platformer · Indie · Singleplayer

Sonic Mania
Shared: Platformer · Retro · Singleplayer

Super Meat Boy
Shared: Platformer · Indie · Singleplayer

Pizza Tower
Shared: Indie · Platformer · Singleplayer

SANABI
Shared: Indie · Singleplayer · Action

Downwell
Shared: Indie · Platformer · Retro

Sonic Origins
Shared: Retro · Platformer · Casual

FEZ
Shared: Indie · Platformer · Casual

Super Fancy Pants Adventure
Shared: Indie · Platformer · Casual

Getting Over It with Bennett Foddy
Shared: Singleplayer · Indie · Platformer

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

Sonic Adventure DX
Shared: Platformer · Singleplayer · Retro

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

Hollow Knight: Silksong
Shared: Indie · Platformer · Singleplayer