Games like Abstract Wars
Games like Abstract Wars include BALL x PIT, Nova Drift, Vampire Survivors, Halls of Torment, and Megabonk. We matched them by the tags players give Abstract Wars on Steam (Arcade, Bullet Hell, Roguelite, Action, and Action Roguelike): closest matches first, and among equally close ones the better-known games.

BALL x PIT
Shared: Arcade · Roguelite · Action

Nova Drift
Shared: Bullet Hell · Arcade · Roguelite

Vampire Survivors
Shared: Bullet Hell · Roguelite · Action Roguelike

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

Megabonk
Shared: Roguelite · Action Roguelike · Bullet Hell

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

Brotato
Shared: Bullet Hell · Action Roguelike · Roguelite

Star of Providence
Shared: Bullet Hell · Roguelite · Action Roguelike

Rogue: Genesia
Shared: Bullet Hell · Arcade · Roguelite

Soulstone Survivors
Shared: Roguelite · Bullet Hell · Action Roguelike

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

SNKRX
Shared: Roguelite · Action Roguelike · Arena Shooter

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

Glyphica: Typing Survival
Shared: Bullet Hell · Action Roguelike · Arena Shooter

Hades
Shared: Roguelite · Action Roguelike · Action

I Am Legion: Stand Survivors
Shared: Bullet Hell · Roguelite · Action Roguelike

Windowkill
Shared: Action · Bullet Hell · Arcade

Boneraiser Minions
Shared: Bullet Hell · Action Roguelike · Roguelite

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

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Action

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

Time Wasters
Shared: Bullet Hell · Action Roguelike · Roguelite

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

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