Games like Planets Ambrosia
Games like Planets Ambrosia include Vampire Survivors, BALL x PIT, Planes, Bullets and Vodka, Bit Blaster XL, and 20 Minutes Till Dawn. We matched them by the tags players give Planets Ambrosia on Steam (Shoot 'Em Up, Bullet Hell, Casual, Top-Down Shooter, and Roguelite): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Roguelite · 2D

BALL x PIT
Shared: Bullet Hell · Roguelite · Shoot 'Em Up

Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Casual · Bullet Hell

Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Shooter

20 Minutes Till Dawn
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

Nova Drift
Shared: Shoot 'Em Up · Bullet Hell · Roguelite

Apocalypse Party
Shared: Casual · Bullet Hell · Top-Down Shooter

Greedland
Shared: Shoot 'Em Up · Bullet Hell · Roguelite

Time Wasters
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

Sky Force Reloaded
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter

Star of Providence
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

Rocket Rats
Shared: Bullet Hell · Casual · Roguelite

Cyberhunt
Shared: Casual · Shoot 'Em Up · Action

SNKRX
Shared: Shoot 'Em Up · Roguelite · Top-Down Shooter

Deep Rock Galactic: Survivor
Shared: Bullet Hell · Roguelite · Top-Down Shooter

Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Shooter

Goobies
Shared: Bullet Hell · Top-Down Shooter · Roguelite

DoDonPachi Resurrection
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter

LUFTRAUSERS
Shared: Bullet Hell · Shoot 'Em Up · 2D

Slime 3K: Rise Against Despot
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

Nuclear Throne
Shared: Bullet Hell · Roguelite · Top-Down Shooter

ZeroRanger
Shared: Shoot 'Em Up · Bullet Hell · 2D

I Am Legion: Stand Survivors
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

Brotato
Shared: Bullet Hell · Roguelite · Top-Down Shooter