Games like Flywrench
Games like Flywrench include Geometry Dash, Celeste, Katana ZERO, Hotline Miami, and Hollow Knight: Silksong. We matched them by the tags players give Flywrench on Steam (Action, Indie, Casual, Difficult, and Minimalist): closest matches first, and among equally close ones the better-known games.

Geometry Dash
Shared: Difficult · Great Soundtrack · 2D

Celeste
Shared: Difficult · Indie · Great Soundtrack

Katana ZERO
Shared: Action · Great Soundtrack · Indie

Hotline Miami
Shared: Action · Indie · Great Soundtrack

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

A Dance of Fire and Ice
Shared: Difficult · Indie · Singleplayer

Hotline Miami 2: Wrong Number
Shared: Action · Great Soundtrack · Difficult

Super Meat Boy
Shared: Indie · Difficult · 2D

Pizza Tower
Shared: Indie · Great Soundtrack · 2D Platformer

SANABI
Shared: Action · Indie · 2D

Baba Is You
Shared: Indie · Difficult · Singleplayer

Super Hexagon
Shared: Indie · Difficult · Great Soundtrack

Hollow Knight
Shared: Difficult · Indie · Great Soundtrack

The Binding of Isaac: Rebirth
Shared: Indie · Difficult · Great Soundtrack

Shovel Knight: Treasure Trove
Shared: Indie · Great Soundtrack · Action

VVVVVV
Shared: Indie · Great Soundtrack · Difficult

Timberman
Shared: Casual · Indie · Action

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

Cuphead
Shared: Difficult · Great Soundtrack · Indie

Hyper Light Drifter
Shared: Indie · Great Soundtrack · Action

UFO 50
Shared: Indie · Action · 2D

The Messenger
Shared: Indie · Action · Great Soundtrack

Vampire Survivors
Shared: Indie · 2D · Casual

Titan Souls
Shared: Indie · Difficult · Action