Games like Boundary of Reason -Iris-
Games like Boundary of Reason -Iris- include Vampire Survivors, BALL x PIT, Halls of Torment, Death Must Die, and Nova Drift. We matched them by the tags players give Boundary of Reason -Iris- on Steam (Shoot 'Em Up, Bullet Hell, Roguelite, Action, and Casual): closest matches first, and among equally close ones the better-known games.
Vampire Survivors
Shared: Bullet Hell · Roguelite · 2D
BALL x PIT
Shared: Roguelite · Action · Bullet Hell
Halls of Torment
Shared: Bullet Hell · Roguelite · Action
Death Must Die
Shared: Bullet Hell · Roguelite · Action
Nova Drift
Shared: Shoot 'Em Up · Bullet Hell · Roguelite
Megabonk
Shared: Roguelite · Bullet Hell · Roguelike
Noobs Want to Live
Shared: Bullet Hell · Action · Roguelike
Star of Providence
Shared: Bullet Hell · Roguelite · Shoot 'Em Up
Hades II
Shared: Action · Roguelite · Roguelike
Skul: The Hero Slayer
Shared: Action · Roguelite · Roguelike
I Am Legion: Stand Survivors
Shared: Bullet Hell · Shoot 'Em Up · Roguelite
20 Minutes Till Dawn
Shared: Bullet Hell · Shoot 'Em Up · Roguelite
Enter the Gungeon
Shared: Bullet Hell · Roguelike · Pixel Graphics
Hero Siege
Shared: Action RPG · Pixel Graphics · Roguelike
Soulstone Survivors
Shared: Roguelite · Bullet Hell · Action RPG
Nuclear Throne
Shared: Bullet Hell · Roguelike · Action
Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Action · Casual
Boneraiser Minions
Shared: Bullet Hell · Roguelite · 2D
Twilight Survivors
Shared: Bullet Hell · Shoot 'Em Up · Roguelite
Greedland
Shared: Shoot 'Em Up · Roguelite · Bullet Hell
Rocket Rats
Shared: Bullet Hell · Roguelite · Casual
Beautiful Mystic Survivors
Shared: Bullet Hell · Shoot 'Em Up · Roguelite
Nordic Ashes: Survivors of Ragnarok
Shared: Bullet Hell · Roguelite · Action RPG
Apocalypse Party
Shared: Casual · Bullet Hell · Shoot 'Em Up