Games like Road to Ballhalla
Games like Road to Ballhalla include Portal 2, Portal, Geometry Dash, A Dance of Fire and Ice, and Human Fall Flat. We matched them by the tags players give Road to Ballhalla on Steam (Comedy, Funny, Rhythm, Puzzle Platformer, and Dark Humor): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Dark Humor · Funny · Puzzle Platformer

Portal
Shared: Puzzle Platformer · Comedy · Funny

Geometry Dash
Shared: Rhythm · Music · Difficult

A Dance of Fire and Ice
Shared: Rhythm · Music · Difficult

Human Fall Flat
Shared: Funny · Puzzle Platformer · Puzzle

Rhythm Doctor
Shared: Rhythm · Music · Funny

South Park™: The Stick of Truth™
Shared: Comedy · Funny · Dark Humor

Trombone Champ
Shared: Comedy · Rhythm · Funny

Super Hexagon
Shared: Rhythm · Difficult · Arcade

Life Goes On: Done to Death
Shared: Funny · Dark Humor · Comedy

Getting Over It with Bennett Foddy
Shared: Funny · Difficult · Dark Humor

Muse Dash
Shared: Rhythm · Music · Colorful

Rift of the NecroDancer
Shared: Rhythm · Music · Arcade

LIMBO
Shared: Puzzle Platformer · Puzzle · Indie

Surgeon Simulator
Shared: Funny · Comedy · Dark Humor

140
Shared: Rhythm · Minimalist · Music

South Park™: The Fractured But Whole™
Shared: Comedy · Funny · Dark Humor

POSTAL 2
Shared: Funny · Dark Humor · Comedy

Fever Meme
Shared: Comedy · Funny · Dark Humor

Intralism
Shared: Rhythm · Music · Difficult

Suicide Guy
Shared: Funny · Comedy · Action

Who's Your Daddy?!
Shared: Funny · Comedy · Dark Humor

Deponia
Shared: Comedy · Funny · Dark Humor

Octodad: Dadliest Catch
Shared: Comedy · Funny · Indie