Games like Geometry Arena 2
Games like Geometry Arena 2 include Brotato, Geometry Arena, Deep Rock Galactic: Survivor, Megabonk, and Nova Drift. We matched them by the tags players give Geometry Arena 2 on Steam (Bullet Heaven, Arena Shooter, Hack and Slash, Top-Down Shooter, and Bullet Hell): closest matches first, and among equally close ones the better-known games.

Brotato
Shared: Bullet Heaven · Bullet Hell · Arena Shooter

Geometry Arena
Shared: Bullet Heaven · Arena Shooter · Hack and Slash

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

Megabonk
Shared: Bullet Heaven · Roguelite · Bullet Hell

Nova Drift
Shared: Bullet Hell · Arena Shooter · Roguelite

Soulstone Survivors
Shared: Bullet Heaven · Bullet Hell · Roguelite

Death Must Die
Shared: Bullet Hell · Bullet Heaven · Roguelite

Halls of Torment
Shared: Bullet Hell · Roguelite · Bullet Heaven

Vampire Survivors
Shared: Bullet Hell · Roguelite · Roguelike

BALL x PIT
Shared: Roguelite · Bullet Hell · Top-Down Shooter

Tower of Babel: Survivors of Chaos
Shared: Bullet Heaven · Bullet Hell · Roguelite

Yet Another Zombie Survivors
Shared: Bullet Heaven · Top-Down Shooter · Roguelite

Pathogenic
Shared: Bullet Heaven · Top-Down Shooter · Bullet Hell

Rogue: Genesia
Shared: Bullet Heaven · Bullet Hell · Roguelite

Arms of God
Shared: Bullet Heaven · Top-Down Shooter · Arena Shooter

The Spell Brigade
Shared: Bullet Heaven · Bullet Hell · Roguelite

Vital Shell
Shared: Bullet Heaven · Roguelite · Arena Shooter

Time Wasters
Shared: Bullet Heaven · Bullet Hell · Arena Shooter

Hades
Shared: Hack and Slash · Roguelite · Roguelike

Noobs Are Coming
Shared: Arena Shooter · Roguelite · Bullet Hell

SNKRX
Shared: Arena Shooter · Top-Down Shooter · Roguelite

Nordic Ashes: Survivors of Ragnarok
Shared: Bullet Heaven · Bullet Hell · Roguelite

Army of Ruin
Shared: Bullet Hell · Top-Down Shooter · Hack and Slash

Slime 3K: Rise Against Despot
Shared: Bullet Hell · Roguelite · Top-Down Shooter