Iron Defense

About Iron Defense: Industrial Scrapyard Turret Defense

Iron Defense drops you into a one-screen defense shooter set in an industrial scrapyard. Waves of junk robots march in from the right, and your job is to hold a turret mounted on a scrap wall long enough to survive all 100 stages — then keep going in an endless climb beyond that. Several scenes show the scrapyard's rusted, industrial character rendered across the battlefield. The pace is relentless: each stage is a contained fight where the wall either stands or falls.

Between the raw shooting and the ability system, Iron Defense layers in a resource economy built around salvaged gold and crystals, giving each run a satisfying loop of combat and preparation.

How to Play Iron Defense

Each stage tasks you with destroying every incoming robot wave before the wall falls. Hold down on the field to fire the turret continuously at the advancing robots. Alongside direct fire, three abilities — fire, ice, and lightning — can be dragged onto the field and released to cast; releasing on the button itself cancels the cast instead.

Abilities draw from an energy pool that refills over time. The + button offers an immediate refill in exchange for crystals when you need energy fast.

Upgrades Between Stages

After each stage, the UPGRADES screen lets you spend the gold and crystals you've salvaged. Four distinct things can be upgraded:

• Turret
• Wall
• Electrified floor
• Auto-gun pylons

Campaign and Endless Mode

Work through the 100-stage campaign, which includes boss encounters along the way. Clearing stage 100 unlocks Endless mode, where a fully upgraded defense can be pushed to see how many additional stages it can hold.

Controls

• Hold mouse button / hold finger on field: Fire the turret at robots
• Drag fire, ice, or lightning button onto the field and release: Cast the ability
• Release on the button: Cancel the ability cast
• + button: Refill energy using crystals

Games You Might Like

If the wave-defense shooting in Iron Defense appeals to you, shooting games on Playgama cover a wide range of action-focused titles worth exploring. For more structured defense strategy, the tower defense games category offers plenty of options, and the arcade games collection is a natural home for fast, score-driven play like Iron Defense's endless mode.

Fans of holding a position against relentless enemy waves will find a strong match in Zombie Sniper Hero, a post-apocalyptic shooter where you switch between sniper and machine gun to repel mutant invaders. Backflip Rooftops Survivor shares Iron Defense's 100-level structure and boss fights, adding automatic weapons and a deep gun-merging system across rooftop arenas. Squad Rush! brings a crowd-shooter twist with weapon upgrades and giant bosses every five levels, while Snake Attack Shooter tests your accuracy against a giant segmented enemy with power-ups and weapon upgrades across escalating levels.