Games like Crimson Colosseum
Games like Crimson Colosseum include Ideology in Friction, Summer Memories, The Curse of Kubel, Lilitales, and Kunoichi Botan. We matched them by the tags players give Crimson Colosseum on Steam (RPG, Indie, Sexual Content, Female Protagonist, and JRPG): closest matches first, and among equally close ones the better-known games.

Ideology in Friction
Shared: RPG · Sexual Content · Indie

Summer Memories
Shared: Sexual Content · RPG · Nudity

The Curse of Kubel
Shared: RPG · Indie · Sexual Content

Lilitales
Shared: RPG · Sexual Content · Indie

Kunoichi Botan
Shared: RPG · Indie · Sexual Content

Tina: Swordswoman of the Scarlet Prison
Shared: RPG · Indie · Sexual Content

Yokai's Secret
Shared: Sexual Content · Indie · Nudity

Mysteria ~Occult Shadows~
Shared: Sexual Content · RPG · Female Protagonist

Seed of Evil
Shared: RPG · Sexual Content · Indie

Your Mom
Shared: Sexual Content · Nudity · Hentai

Liz The Tower and the Grimoire
Shared: RPG · Indie · Sexual Content

Dark Hero Party
Shared: RPG · Indie · Sexual Content

NALOGI
Shared: Sexual Content · Indie · RPG

Sakura Dungeon
Shared: Sexual Content · RPG · Nudity

RaiOhGar: Asuka and the King of Steel
Shared: RPG · Indie · Sexual Content

Seek Girl Ⅲ
Shared: Sexual Content · Indie · RPG

Yarimono
Shared: Sexual Content · RPG · Nudity

Banner of the Maid
Shared: RPG · Indie · Female Protagonist

DEAD OR SCHOOL
Shared: Female Protagonist · RPG · Sexual Content

Phantom Thief Celianna
Shared: RPG · Indie · Sexual Content

West Sweety
Shared: Sexual Content · Indie · RPG

Bound by Love
Shared: RPG · Sexual Content · Nudity

Holy Knight Luviria
Shared: RPG · Indie · Sexual Content

The Chosen RPG
Shared: RPG · Indie · Anime