Games like Frogmageddon
Games like Frogmageddon include Vampire Survivors, Deep Rock Galactic: Survivor, BALL x PIT, Halls of Torment, and Boneraiser Minions. We matched them by the tags players give Frogmageddon on Steam (Action Roguelike, Bullet Hell, Top-Down Shooter, Roguelite, and Nature): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Bullet Hell · Roguelite

BALL x PIT
Shared: Bullet Hell · Roguelite · Action Roguelike

Halls of Torment
Shared: Action Roguelike · Bullet Hell · Roguelite

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

Megabonk
Shared: Action Roguelike · Roguelite · Bullet Hell

Rogue: Genesia
Shared: Bullet Hell · Action Roguelike · Roguelite

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Roguelite

Yet Another Zombie Survivors
Shared: Action Roguelike · Top-Down Shooter · Roguelite

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Roguelite

Glyphica: Typing Survival
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Goobies
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Tiny Rogues
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Nova Drift
Shared: Bullet Hell · Action Roguelike · Roguelite

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelite

Death Must Die
Shared: Action Roguelike · Bullet Hell · Roguelite

The Spell Brigade
Shared: Bullet Hell · Roguelite · Action Roguelike

Rocket Rats
Shared: Action Roguelike · Bullet Hell · Roguelite

Slime 3K: Rise Against Despot
Shared: Action Roguelike · Bullet Hell · Roguelite

Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Enter the Gungeon
Shared: Action Roguelike · Bullet Hell · Indie

SNKRX
Shared: Action Roguelike · Roguelite · Top-Down Shooter

SYNTHETIK: Legion Rising
Shared: Top-Down Shooter · Roguelite · Action Roguelike

SYNTHETIK 2
Shared: Action Roguelike · Top-Down Shooter · Roguelite