Games like Time Up
Games like Time Up include Hollow Knight, Hollow Knight: Silksong, Minimalism, BEEP, and Skul: The Hero Slayer. We matched them by the tags players give Time Up on Steam (Casual, Adventure, Indie, Action, and 2D): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Platformer · Difficult · Indie

Hollow Knight: Silksong
Shared: Indie · Difficult · 2D

Minimalism
Shared: Casual · Indie · Action

BEEP
Shared: Indie · Adventure · 2D

Skul: The Hero Slayer
Shared: Indie · Action · 2D

Super Fancy Pants Adventure
Shared: Adventure · Action · Indie

Celeste
Shared: Indie · Difficult · Platformer

LIMBO
Shared: Indie · Adventure · Platformer

Nine Sols
Shared: 2D · Difficult · Action

SANABI
Shared: Action · Adventure · Indie

Super Meat Boy
Shared: Indie · Difficult · Platformer

Zup! S
Shared: Casual · Indie · 2D

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

Geometry Dash
Shared: Difficult · 2D · Platformer

Timberman
Shared: Casual · Indie · Action

Jump King
Shared: Indie · Adventure · Difficult

Super Hexagon
Shared: Indie · Difficult · Fast-Paced

Pikuniku
Shared: Adventure · Casual · Indie

Dust: An Elysian Tail
Shared: Action · Indie · Adventure

Rogue Legacy 2
Shared: Action · Indie · Adventure

No Time To Explain Remastered
Shared: Indie · Adventure · Casual

Pizza Tower
Shared: Indie · Fast-Paced · Platformer

One Finger Death Punch
Shared: Action · Indie · Fast-Paced

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