Games like IronWood
Games like IronWood include CULTIC, Warhammer 40,000: Boltgun, HROT, Serious Sam: Siberian Mayhem, and BioShock Infinite. We matched them by the tags players give IronWood on Steam (Action, Shooter, Boomer Shooter, Exploration, and FPS): closest matches first, and among equally close ones the better-known games.

CULTIC
Shared: Boomer Shooter · Shooter · Action

Warhammer 40,000: Boltgun
Shared: Boomer Shooter · Shooter · FPS

HROT
Shared: Boomer Shooter · Shooter · FPS

Serious Sam: Siberian Mayhem
Shared: Action · Boomer Shooter · Shooter

BioShock Infinite
Shared: Action · Shooter · FPS

DOOM
Shared: Action · Shooter · FPS

Call of Duty®
Shared: Shooter · Action · FPS

DUSK
Shared: Boomer Shooter · Shooter · FPS

POSTAL: Brain Damaged
Shared: Action · Shooter · Boomer Shooter

DOOM Eternal
Shared: Action · FPS · Shooter

Turbo Overkill
Shared: Action · Boomer Shooter · Shooter

Forgive Me Father
Shared: Boomer Shooter · Action · FPS

SharpShooter3D
Shared: Boomer Shooter · Action · FPS

Echo Point Nova
Shared: Shooter · FPS · Action

Selaco
Shared: Shooter · FPS · Action

Prodeus
Shared: Boomer Shooter · Action · FPS

Black Mesa
Shared: Action · FPS · Shooter

Ion Fury
Shared: Boomer Shooter · FPS · Shooter

Wizordum
Shared: Action · Boomer Shooter · Shooter

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · FPS

Counter-Strike
Shared: Action · Shooter · FPS

Half-Life 2
Shared: Action · FPS · Shooter

Trepang2
Shared: Shooter · FPS · Action

Deep Rock Galactic
Shared: FPS · Shooter · Exploration