Games like The Red Moon
Games like The Red Moon include NieR:Automata™, Path of Exile 2, Persona® 5 Strikers, The First Berserker: Khazan, and ICEY. We matched them by the tags players give The Red Moon on Steam (RPG, Early Access, Anime, and Hack and Slash): closest matches first, and among equally close ones the better-known games.

NieR:Automata™
Shared: RPG · Hack and Slash · Anime

Path of Exile 2
Shared: RPG · Hack and Slash · Early Access

Persona® 5 Strikers
Shared: Anime · Hack and Slash · RPG

The First Berserker: Khazan
Shared: Hack and Slash · Anime · RPG

ICEY
Shared: Anime · Hack and Slash · RPG

Fate/EXTELLA LINK
Shared: Anime · RPG · Hack and Slash

Titan Quest II
Shared: RPG · Hack and Slash · Early Access

Tales of Berseria™
Shared: RPG · Anime · Hack and Slash

Cyberdimension Neptunia: 4 Goddesses Online
Shared: RPG · Anime · Hack and Slash

GOD EATER 3
Shared: Anime · Hack and Slash · RPG

Ni no Kuni™ II: Revenant Kingdom
Shared: RPG · Anime · Hack and Slash

Trials of Mana
Shared: RPG · Anime · Hack and Slash

ONE PIECE: PIRATE WARRIORS 4
Shared: Anime · Hack and Slash · RPG

Solo Leveling: ARISE OVERDRIVE
Shared: Anime · Hack and Slash · RPG

Granblue Fantasy: Relink
Shared: Anime · Hack and Slash · RPG

Ys VIII: Lacrimosa of DANA
Shared: RPG · Anime · Hack and Slash

No Rest for the Wicked
Shared: Hack and Slash · RPG · Early Access

Duet Night Abyss
Shared: RPG · Anime · Hack and Slash

Tales of ARISE
Shared: RPG · Anime · Hack and Slash

GOD EATER 2 Rage Burst
Shared: Anime · RPG · Hack and Slash

Sword Art Online Re: Hollow Fragment
Shared: RPG · Anime · Hack and Slash

Hyperdimension Neptunia U: Action Unleashed
Shared: Anime · Hack and Slash · RPG

NieR Replicant™ ver.1.22474487139...
Shared: RPG · Hack and Slash · Anime

Persona 3 Reload
Shared: RPG · Anime