Games like Puzzle Box - Level Pack DLC #1
Games like Puzzle Box - Level Pack DLC #1 include BEEP, Ori and the Will of the Wisps, Pikuniku, Hollow Knight, and GRIS. We matched them by the tags players give Puzzle Box - Level Pack DLC #1 on Steam (Strategy, Action, Adventure, Indie, and Casual): closest matches first, and among equally close ones the better-known games.

BEEP
Shared: Indie · Adventure · Platformer

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

Pikuniku
Shared: Adventure · Indie · Casual

Hollow Knight
Shared: Platformer · Indie · Great Soundtrack

GRIS
Shared: Indie · Adventure · Great Soundtrack

UFO 50
Shared: Indie · Action · Strategy

FEZ
Shared: Indie · Platformer · Puzzle

Waveform
Shared: Indie · Strategy · Casual

Hollow Knight: Silksong
Shared: Indie · Great Soundtrack · Platformer

Out There Somewhere
Shared: Indie · Platformer · Adventure

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

LIMBO
Shared: Indie · Platformer · Puzzle

Plants vs. Zombies GOTY Edition
Shared: Strategy · Casual · Great Soundtrack

Human Fall Flat
Shared: Adventure · Puzzle · Action

Gunpoint
Shared: Indie · Puzzle · Action

Nihilumbra
Shared: Adventure · Indie · Platformer

Rock 'N' Roll Defense
Shared: Strategy · Action · Adventure

Seen
Shared: Indie · Adventure · Action

Scribblenauts Unlimited
Shared: Adventure · Casual · Puzzle

There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Puzzle

Defy Gravity Extended
Shared: Indie · Platformer · Action

Totally Accurate Battle Simulator
Shared: Strategy · Sandbox · Indie

Polarity
Shared: Indie · Adventure · Strategy

The Basement Collection
Shared: Adventure · Strategy · Indie