Iron Saga: ZERO

Iron Saga: Official Classic Server
Get extra rewards at launch — 300 free summons and a select SSS mecha!

Experience the iconic super robot battles anew, fused with adrenaline-charged mecha fighting straight from the original universe!

Effortless one-tap sweeps and refined features make every battle smoother, faster!

Steam paid fighting games now free with multiple popular crossover titles:
Mazinger Z, Shin Getter Robot, Hades Project Zeorymer, Dancouga: Super Beast Machine God, and more!

[Licensed Collaborations – Legendary Mecha Crossovers]

Having successfully introduced many super robot IPs to the universe, Iron Saga partners directly with numerous famous anime studios, creators, and rights holders to bring your favorite robots to life.
These collaborations don’t just feature imported characters—they include original artwork, animations, and soundtrack remakes created specially for the event.

[Top-Tier Creators – A New Original Mecha IP]

Made with passion. Composed with soul.
We proudly welcome legendary composer Hiroyuki Sawano (Mobile Suit Gundam UC, Guilty Crown, Attack on Titan) as the theme and BGM composer, and acclaimed mechanical designer & animation director Masami Ōbari (Dancouga, Super Robot Wars, Gundam Build Series, Iron-Blooded Orphans) as mecha designer and PV animation director.

[Sincere Revival – Enhanced Experience & Expanded Rewards]

A decade of passion reborn! The Classic Server has been rebuilt and rebalanced with modern optimizations:
-Smooth controls and improved UI
-300 free pulls + selectable SSS mecha
-Increased gold & EXP gains
-Faster upgrades and balanced combat stats
Level up faster, grow your lineup, and keep your mecha relevant for years to come!

[10 Years of Legacy – Relive the Glory of True Mecha Combat]

More than story battles—dive into VS fighting, battle betting, rocket pack races, mecha card duels, and more! Experience arcade-grade, hardcore mecha fighting, with fluid combos, unique armament systems, and spectacular super attacks that define the Iron Saga legacy.

[Classic Meets New – 200+ Pilots and Mecha]

Over 200 mecha and pilots, each with unique skills, personalities, and switchable skins with exclusive BGM themes.A refreshed friendship and support system lets you interact directly with your pilots and mecha—turning the impossible into reality!

[Worldview]

Long ago, the world was reduced to ashes in a war waged by the 13 titanic war machines known as the “Grand God.” Centuries later, the devastation faded into myth… until the birth of BMs (Battle Mechs) reignited the spark of conflict. Mercenaries, soldiers, bounty hunters—the pilots of steel giants once again took to the battlefield. A new legend of iron and fire is about to begin.