Games like Rockit!
Games like Rockit! include Geometry Dash, Celeste, Super Meat Boy, Hotline Miami 2: Wrong Number, and Downwell. We matched them by the tags players give Rockit! on Steam (Action, Arcade, Top-Down, Difficult, and Precision Platformer): closest matches first, and among equally close ones the better-known games.

Geometry Dash
Shared: Difficult · Precision Platformer · 2D

Celeste
Shared: Difficult · Precision Platformer · Singleplayer

Super Meat Boy
Shared: Precision Platformer · Difficult · Singleplayer

Hotline Miami 2: Wrong Number
Shared: Action · Difficult · Top-Down

Downwell
Shared: Precision Platformer · Arcade · Action

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

Hotline Miami
Shared: Action · Top-Down · Difficult

SANABI
Shared: Action · Singleplayer · 2D Platformer

Planes, Bullets and Vodka
Shared: Action · Arcade · Retro

Exit the Gungeon
Shared: Arcade · Action · Difficult

Jump King
Shared: Difficult · Precision Platformer · Action

Ape Out
Shared: Action · Top-Down · Difficult

SUPER CHICKEN JUMPER
Shared: Arcade · Difficult · 2D

Timberman
Shared: Action · Arcade · Difficult

Rogue Legacy 2
Shared: Arcade · Action · Difficult

UFO 50
Shared: Action · Arcade · Retro

BALL x PIT
Shared: Action · Arcade · Top-Down

VVVVVV
Shared: Precision Platformer · Difficult · Action

Disc Room
Shared: Action · Difficult · Singleplayer

Orbt XL
Shared: Arcade · Difficult · Action

Dungeon Escape
Shared: Difficult · Precision Platformer · Action

Super Hexagon
Shared: Difficult · Arcade · Action

I Wanna Maker
Shared: Precision Platformer · Arcade · Singleplayer

DJMAX RESPECT V
Shared: Action · Arcade · Singleplayer

