Single-player games like The Iron Union
Below are 9 single-player Steam games similar to The Iron Union, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like The Iron Union page.
Ranked picks
- 1
Jack Big Chin: Alien Invasion
Single-player alternative to The Iron Union — playable solo, no multiplayer required. Shares Action and Indie with The Iron Union.
Save humanity! Help Jack Big Chin defeat the alien invaders, in a hard action-adventure game with 3D platform elements, where you must improve your weapons and activate cannons to complete your missions.
- 2
Masters of the Air
Single-player alternative to The Iron Union — playable solo, no multiplayer required. Shares Action and Indie with The Iron Union.
This is a flying barrage shooting game, the background is the Pacific theater of World War II, the player controls a fighter plane in the game, in order to experience the exhilarating barrage shooting.
- 3
Zombies & Bullets
Single-player alternative to The Iron Union — playable solo, no multiplayer required. Shares Action and Indie with The Iron Union.
Zombies & Bullets is a 3D top-down action shooter game where you must help the soldiers Jacob and Erin face armies of zombies in varied levels full of challenges. Prove your skills and become the warrior of the zombie apocalypse!
- 4
Ore & Ordnance
Single-player alternative to The Iron Union — playable solo, no multiplayer required. Shares Action and Indie with The Iron Union.
Ore & Ordnance is a Retro styled, Sci-fi, Bullet Hell. Survive endless waves of Pirates, Asteroids and Firestorms. Collect upgrades, complete missions and survive your shift! How long will you last?
- 5
Null Core
Single-player alternative to The Iron Union — playable solo, no multiplayer required. Shares Action and Indie with The Iron Union.
Null Core is stylized action rogue-lite bullet-hell dungeon crawler that can be played solo or co-op where you play as legendary tank heroes fighting in a rebellion against an evil empire.
- 6
Solos
Single-player alternative to The Iron Union — playable solo, no multiplayer required. Shares Action with The Iron Union.
Create your own bullet hell.
- 7
PARACHUTER
Single-player alternative to The Iron Union — playable solo, no multiplayer required. Shares Action and Indie with The Iron Union.
With a limited number of moves, move through the selection of the direction of gravity. Defeat all enemies and escape this strange world.
- 8
Oh! Robot: Legendary Mechanic
Single-player alternative to The Iron Union — playable solo, no multiplayer required. Shares Action and Indie with The Iron Union.
Oh! Robot is a top-down shooting game featuring the catchphrase 'NEVER GIVE UP! NEVER SURRENDER!' It follows the journey of a brave young girl who pilots a robot named ZeroBot to save the world from rampaging machines driven mad by a rogue AI. Engine start let’s go!
- 9
KayserRotz
Single-player alternative to The Iron Union — playable solo, no multiplayer required. Shares Action and Indie with The Iron Union.
《KyserRotz》 is a new,single,rogue-like,adventure game.Players have to stand their ground under the siege from enemy,challenge to the last.