Games like Monkey Barrels
Games like Monkey Barrels include The Ascent, Escape From Duckov, Minishoot' Adventures, Fallout 4, and BioShock Infinite. We matched them by the tags players give Monkey Barrels on Steam (Action, Adventure, RPG, Shooter, and Bullet Hell): closest matches first, and among equally close ones the better-known games.

The Ascent
Shared: RPG · Action · Top-Down Shooter

Escape From Duckov
Shared: Action · Adventure · Shooter

Minishoot' Adventures
Shared: Bullet Hell · Adventure · Twin Stick Shooter

Fallout 4
Shared: RPG · Adventure · Shooter

BioShock Infinite
Shared: Action · Shooter · RPG

Relic Hunters Zero: Remix
Shared: Action · Adventure · Twin Stick Shooter

Remnant: From the Ashes
Shared: Action · RPG · Adventure

REMNANT II®
Shared: Action · Adventure · RPG

OUTRIDERS
Shared: RPG · Action · Adventure

Borderlands 2
Shared: Action · Shooter · RPG

Halo: Spartan Assault
Shared: Action · Top-Down Shooter · Shooter

Grand Theft Auto V Legacy
Shared: Action · Adventure · Shooter

Insect Swarm
Shared: Shooter · Top-Down Shooter · RPG

Fallout: New Vegas
Shared: RPG · Action · Adventure

S.T.A.L.K.E.R.: Shadow of Chornobyl - Enhanced Edition
Shared: Action · Adventure · RPG

Guns n Zombies
Shared: Action · RPG · Adventure

Monster Hunter: World
Shared: Action · RPG · Adventure

Juicy Realm
Shared: Action · Adventure · RPG

Watch Dogs®: Legion
Shared: Action · Adventure · RPG

Black Myth: Wukong
Shared: Action · RPG · Adventure

Enter the Gungeon
Shared: Bullet Hell · Action · Twin Stick Shooter

SYNTHETIK: Legion Rising
Shared: Action · Top-Down Shooter · Shooter

Bloodstained: Ritual of the Night
Shared: Action · RPG · Adventure

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · Adventure