Games like Oonga Boonga
Games like Oonga Boonga include Vampire Survivors, Halls of Torment, Death Must Die, Noobs Want to Live, and Seraph's Last Stand. We matched them by the tags players give Oonga Boonga on Steam (Bullet Hell, Tower Defense, Action RPG, Roguelike, and 2D): closest matches first, and among equally close ones the better-known games.
Vampire Survivors
Shared: Bullet Hell · 2D · Pixel Graphics
Halls of Torment
Shared: Bullet Hell · Roguelike · Action RPG
Death Must Die
Shared: Bullet Hell · Pixel Graphics · 2D
Noobs Want to Live
Shared: Bullet Hell · Roguelike · Action
Seraph's Last Stand
Shared: Bullet Hell · Casual · 2D
Enter the Gungeon
Shared: Bullet Hell · Roguelike · Pixel Graphics
Hero Siege
Shared: Action RPG · Pixel Graphics · Roguelike
BALL x PIT
Shared: Bullet Hell · Action · Roguelike
Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Casual · 2D
Megabonk
Shared: Roguelike · Bullet Hell · Action
Soulstone Survivors
Shared: Bullet Hell · Action RPG · Roguelike
Boneraiser Minions
Shared: Bullet Hell · 2D · Pixel Graphics
DELTARUNE
Shared: Bullet Hell · Pixel Graphics · 2D
Dead Cells
Shared: Roguelike · 2D · Pixel Graphics
Black Myth: Wukong
Shared: Action RPG · Action · Dark Fantasy
HoloCure - Save the Fans!
Shared: Bullet Hell · Pixel Graphics · 2D
Dome Keeper
Shared: Roguelike · Tower Defense · Action
Rocket Rats
Shared: Bullet Hell · Casual · Pixel Graphics
Archvale
Shared: Bullet Hell · Action RPG · Action
Kingdom Rush - Tower Defense
Shared: Tower Defense · 2D · Casual
Skul: The Hero Slayer
Shared: Roguelike · Action · 2D
Tangy TD
Shared: Tower Defense · Roguelike · Action
Desktop Survivors 98
Shared: Bullet Hell · Casual · Action
Spirit Hunters: Infinite Horde
Shared: Bullet Hell · Action RPG · Action