Games like Knightime
Games like Knightime include Megabonk, Jotunnslayer: Hordes of Hel, Vampire Survivors, Death Must Die, and Yet Another Zombie Survivors. We matched them by the tags players give Knightime on Steam (Casual, Action Roguelike, Bullet Heaven, Roguelite, and 3D): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Action Roguelike · Bullet Heaven · Roguelite

Jotunnslayer: Hordes of Hel
Shared: Action Roguelike · Bullet Heaven · Roguelite

Vampire Survivors
Shared: Action Roguelike · Roguelite · Casual

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

Yet Another Zombie Survivors
Shared: Bullet Heaven · Action Roguelike · Roguelite

Hades
Shared: Action Roguelike · Roguelite · Indie

Brotato
Shared: Action Roguelike · Bullet Heaven · Roguelite

Tower of Babel: Survivors of Chaos
Shared: Action Roguelike · Bullet Heaven · Roguelite

Soulstone Survivors
Shared: Action Roguelike · Bullet Heaven · Roguelite

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

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

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

Wanderburg
Shared: Action Roguelike · Bullet Heaven · Medieval

20 Minutes Till Dawn
Shared: Action Roguelike · Roguelite · Casual

Boneraiser Minions
Shared: Action Roguelike · Roguelite · Bullet Heaven

Apocalypse Party
Shared: Casual · Action Roguelike · Roguelite

Risk of Rain 2
Shared: Action Roguelike · Roguelite · Loot

Astro Prospector
Shared: Casual · Action Roguelike · Roguelite

Goobies
Shared: Action Roguelike · Casual · Roguelite

Time Wasters
Shared: Action Roguelike · Bullet Heaven · Roguelite

Shape of Dreams
Shared: Action Roguelike · Roguelite · PvE

Nordic Ashes: Survivors of Ragnarok
Shared: Action Roguelike · Bullet Heaven · Roguelite

Curse of the Dead Gods
Shared: Action Roguelike · Roguelite · Isometric

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