Games like Kaboomania
Games like Kaboomania include Timberman, Vampire Survivors, UFO 50, Broforce, and Timberman VS. We matched them by the tags players give Kaboomania on Steam (Action, Indie, Arcade, 4 Player Local, and Party Game): closest matches first, and among equally close ones the better-known games.

Timberman
Shared: Indie · Action · Casual

Vampire Survivors
Shared: Indie · Pixel Graphics · Action

UFO 50
Shared: Indie · Action · Arcade

Broforce
Shared: Action · Indie · Pixel Graphics

Timberman VS
Shared: Action · Indie · Arcade

Cyberhunt
Shared: Action · Indie · Arcade

Duck Game
Shared: Action · 4 Player Local · Indie

Skul: The Hero Slayer
Shared: Action · Indie · Pixel Graphics

Shovel Knight: Treasure Trove
Shared: Indie · Action · Pixel Graphics

Move or Die
Shared: Action · Indie · 4 Player Local

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

Rivals of Aether
Shared: Indie · Pixel Graphics · 4 Player Local

Streets of Rage 4
Shared: Action · Indie · Arcade

TowerFall Ascension
Shared: Indie · Action · 4 Player Local

LUFTRAUSERS
Shared: Indie · Action · Arcade

A Dance of Fire and Ice
Shared: Indie · Arcade · 2D

Hotline Miami
Shared: Action · Indie · Pixel Graphics

Trip to Vinelands
Shared: Action · Indie · Arcade

Kung Fury: Street Rage - Ultimate Edition
Shared: Arcade · Indie · Action

Gang Beasts
Shared: Action · Indie · Party Game

Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
Shared: Arcade · Action · 2D

Defy Gravity Extended
Shared: Indie · Puzzle Platformer · Action

Downwell
Shared: Indie · Arcade · Action

Exit the Gungeon
Shared: Indie · Action · Arcade