Games like Cellyon: Boss Maker
Games like Cellyon: Boss Maker include ELDEN RING, Mount & Blade II: Bannerlord, Orcs Must Die! 2, Monster Hunter: World, and MONSTER HUNTER RISE. We matched them by the tags players give Cellyon: Boss Maker on Steam (RPG, Action, Indie, Strategy, and Online Co-Op): closest matches first, and among equally close ones the better-known games.

ELDEN RING
Shared: RPG · Difficult · Action

Mount & Blade II: Bannerlord
Shared: RPG · Strategy · Action

Orcs Must Die! 2
Shared: Action · Strategy · Indie

Monster Hunter: World
Shared: Action · RPG · Multiplayer

MONSTER HUNTER RISE
Shared: Action · RPG · Online Co-Op

Mount & Blade: Warband
Shared: RPG · Strategy · Action

SMITE®
Shared: Action · Strategy · Multiplayer

Bloons TD 6
Shared: Strategy · Online Co-Op · Multiplayer

Torchlight II
Shared: RPG · Action · Online Co-Op

Marvel Rivals
Shared: Action · Multiplayer · RPG

PUBG: BATTLEGROUNDS
Shared: Action · Online Co-Op · Multiplayer

Magicka
Shared: Action · RPG · Online Co-Op

PAYDAY 2
Shared: Action · Online Co-Op · RPG

Don't Starve Together
Shared: Online Co-Op · Indie · Multiplayer

Monster Hunter Wilds
Shared: Action · Online Co-Op · Multiplayer

Remnant: From the Ashes
Shared: Action · RPG · Online Co-Op

Ravenswatch
Shared: Action · Online Co-Op · Indie

SMITE 2
Shared: Action · Strategy · RPG

Borderlands 3
Shared: RPG · Online Co-Op · Action

Warframe
Shared: Action · RPG · Online Co-Op

ELDEN RING NIGHTREIGN
Shared: Online Co-Op · Action · Multiplayer

Gunfire Reborn
Shared: Online Co-Op · Indie · Action

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

For The King
Shared: RPG · Online Co-Op · Strategy