Games like Armechgeddon
Games like Armechgeddon include Vampire Survivors, Megabonk, Brotato, Halls of Torment, and Soulstone Survivors. We matched them by the tags players give Armechgeddon on Steam (Action Roguelike, Roguelite, Bullet Hell, Casual, and Indie): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

Megabonk
Shared: Action Roguelike · Roguelite · Bullet Hell

Brotato
Shared: Action Roguelike · Bullet Hell · Singleplayer

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

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

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

Hades
Shared: Action Roguelike · Roguelite · Indie

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

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

Boneraiser Minions
Shared: Action Roguelike · Bullet Hell · Roguelite

Yet Another Zombie Survivors
Shared: Action Roguelike · Roguelite · Indie

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

Noobs Want to Live
Shared: Bullet Hell · Action Roguelike · Roguelite

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

Project Lazarus
Shared: Action Roguelike · Bullet Hell · Casual

Be My Horde
Shared: Action Roguelike · Indie · Bullet Hell

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

Nova Drift
Shared: Roguelite · Bullet Hell · Action Roguelike

Astro Prospector
Shared: Roguelite · Action Roguelike · Casual

Apocalypse Party
Shared: Action Roguelike · Casual · Bullet Hell

Skul: The Hero Slayer
Shared: Action Roguelike · Indie · Roguelite

Magicraft
Shared: Action Roguelike · Roguelite · Bullet Hell

Nuclear Throne
Shared: Action Roguelike · Indie · Bullet Hell

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