Games like Filled to the Limit
Games like Filled to the Limit include Unpacking, DAVE THE DIVER, Shelldiver, Vampire Survivors, and Zup! S. We matched them by the tags players give Filled to the Limit on Steam (Casual, Female Protagonist, Relaxing, Pixel Graphics, and 2D): closest matches first, and among equally close ones the better-known games.

Unpacking
Shared: Casual · Relaxing · Pixel Graphics

DAVE THE DIVER
Shared: Casual · Pixel Graphics · Relaxing

Shelldiver
Shared: Casual · Relaxing · 2D

Vampire Survivors
Shared: Pixel Graphics · 2D · Casual

Zup! S
Shared: Casual · 2D · Relaxing

Muse Dash
Shared: Female Protagonist · Casual · Cute

Slime Rancher 2
Shared: Relaxing · Singleplayer · Cute

Timberman
Shared: Casual · Pixel Graphics · 2D

Celeste
Shared: Pixel Graphics · Female Protagonist · Singleplayer

Nodebuster
Shared: Casual · 2D · Relaxing

Gensokyo Night Festival
Shared: Casual · Pixel Graphics · Female Protagonist

A Short Hike
Shared: Relaxing · Casual · Pixel Graphics

Assemble with Care
Shared: Casual · Relaxing · Female Protagonist

Stardew Valley
Shared: Pixel Graphics · Relaxing · Casual

GRIS
Shared: Female Protagonist · Relaxing · Singleplayer

Zup!
Shared: Casual · 2D · Relaxing

your wife
Shared: Casual · Relaxing · Cute

Eastward
Shared: Pixel Graphics · Singleplayer · 2D

Chill with You : Lo-Fi Story
Shared: Casual · Relaxing · Female Protagonist

Mini Motorways
Shared: Casual · Relaxing · Minimalist

Touhou Mystia's Izakaya
Shared: Casual · Pixel Graphics · Time Management

DJMAX RESPECT V
Shared: Casual · Singleplayer · 2D

Baba Is You
Shared: Pixel Graphics · Singleplayer · 2D

OneShot
Shared: Pixel Graphics · Cute · Singleplayer