Games like Necromancers' Arena
Games like Necromancers' Arena include Deaths Door, Minishoot' Adventures, Bug Fables: The Everlasting Sapling, Insect Swarm, and The Ascent. We matched them by the tags players give Necromancers' Arena on Steam (Twin Stick Shooter, Party-Based RPG, 2.5D, Cute, and Dark Fantasy): closest matches first, and among equally close ones the better-known games.

Deaths Door
Shared: Cute · Dark Fantasy · Cartoony

Minishoot' Adventures
Shared: Twin Stick Shooter · Cute · RPG

Bug Fables: The Everlasting Sapling
Shared: Party-Based RPG · 2.5D · Cute

Insect Swarm
Shared: Twin Stick Shooter · Shoot 'Em Up · Top-Down Shooter

The Ascent
Shared: Top-Down Shooter · Twin Stick Shooter · RPG

Bing in Wonderland
Shared: Cute · Hand-drawn · Casual

OCTOPATH TRAVELER II
Shared: 2.5D · Party-Based RPG · RPG

ATLYSS
Shared: Cute · Action RPG · RPG

ELDEN RING
Shared: Dark Fantasy · Action RPG · RPG

Chippy
Shared: Twin Stick Shooter · Arena Shooter · Shoot 'Em Up

Black Myth: Wukong
Shared: Action RPG · Dark Fantasy · Action

Juicy Realm
Shared: Twin Stick Shooter · Cute · Action

Sektori
Shared: Twin Stick Shooter · Shoot 'Em Up · Arena Shooter

Visions of Mana
Shared: Party-Based RPG · Cute · Action RPG

Cyberhunt
Shared: Twin Stick Shooter · Shoot 'Em Up · Indie

Path of Exile
Shared: Dark Fantasy · Action RPG · RPG

Kabuto Park
Shared: Cute · Party-Based RPG · Casual

FANTASY LIFE i: The Girl Who Steals Time
Shared: Party-Based RPG · Cute · RPG

Time Wasters
Shared: Twin Stick Shooter · Arena Shooter · Shoot 'Em Up

Born of Bread
Shared: Party-Based RPG · 2.5D · Cute

Carto
Shared: Cute · Hand-drawn · Indie

Wolcen: Lords of Mayhem
Shared: Action RPG · Dark Fantasy · RPG

Melatonin
Shared: Cute · Hand-drawn · Indie

DARK SOULS™ II: Scholar of the First Sin
Shared: Dark Fantasy · RPG · Action RPG