Games like Final Knight
Games like Final Knight include Vampire Survivors, Halls of Torment, Hero Siege, Death Must Die, and Megabonk. We matched them by the tags players give Final Knight on Steam (Action Roguelike, Arcade, Beat 'em up, Party-Based RPG, and Loot): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Pixel Graphics · Arcade

Halls of Torment
Shared: Action Roguelike · Action RPG · Arcade

Hero Siege
Shared: Action Roguelike · Action RPG · Pixel Graphics

Death Must Die
Shared: Action Roguelike · Pixel Graphics · Action

Megabonk
Shared: Action Roguelike · Roguelike · Loot

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

BALL x PIT
Shared: Arcade · Action Roguelike · Action

Rogue Legacy
Shared: Action Roguelike · Roguelike · Action

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Roguelike · Pixel Graphics

Heroes of Hammerwatch II
Shared: Action Roguelike · Action RPG · Action

Risk of Rain Returns
Shared: Action Roguelike · Arcade · 2D

Soulstone Survivors
Shared: Action Roguelike · Action RPG · Roguelike

Hades II
Shared: Action Roguelike · Action · Roguelike

Dungreed
Shared: Action Roguelike · Roguelike · Pixel Graphics

Dead Cells
Shared: Action Roguelike · Roguelike · Pixel Graphics

Lost Castle
Shared: Action Roguelike · Beat 'em up · Roguelike

Wizard of Legend
Shared: Action Roguelike · Roguelike · Pixel Graphics

Mini Healer
Shared: Party-Based RPG · Loot · Action RPG

Enter the Gungeon
Shared: Action Roguelike · Roguelike · Pixel Graphics

The Slormancer
Shared: Loot · Action RPG · Pixel Graphics

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

FINAL FANTASY VII REMAKE INTERGRADE
Shared: Action RPG · Party-Based RPG · Action

Hades
Shared: Action Roguelike · Action · Roguelike

Tower of Babel: Survivors of Chaos
Shared: Action Roguelike · Loot · Roguelike