Iron Swarm Game Modes
Iron Swarm gives you several distinct ways to play, so there is always a fresh reason to return beyond a single endless loop. Below is every mode — what it is, how it plays, and what you get out of it. All of them share the same core combat: drive, aim with your movement, fire with Space or F, launch the homing missile with R, and call the drone with E. New here? Read How to Play first, then come back to pick a mode — or just jump straight into a battle.
Campaign
The authored heart of the game: six handcrafted chapters, from the Sunken Marshlands of Chapter 1 to the Iron Citadel of Chapter 6, each built around one new enemy mix and one new terrain or biome. Each chapter is a four-round arc — three combat rounds on rotating maps, then a boss. Unlike a pure endless mode, the Campaign has a real ending: it concludes when you defeat the Iron Commander at round 24, with a proper win state rather than silently rolling on. Every chapter is scored with a one- to three-star rating based on how cleanly you cleared it, so there is always a better run to chase. What you earn: chapter stars, story progression, and the satisfaction of a finite, beatable arc.
Chapter 7 — the veteran loop
Beaten the Iron Commander and want more? The veteran loop (Chapter 7 onward) picks up after the finale and escalates indefinitely, reusing the full combat loop with the difficulty curve cranking up each cycle. The HUD swaps chapter names for a "CYCLE N" label and the intro card reads "THE RESISTANCE CONTINUES." This is the campaign's answer to "how far can I push it" once the story is done. What you earn: score and bragging rights as the cycles climb.
Missions
Eight standalone story missions, each a self-contained, fair scenario with its own tank, map, and victory condition — not just "survive the waves." Across the eight missions there are 23 mastery objectives in total: optional challenges like finishing with your health above a threshold, sealing an escape route so no enemy slips past, or fully eliminating a wave instead of merely surviving the timer. Missions use hand-placed power-ups rather than random drops, so each is a designed puzzle you can learn and perfect. There is no mid-mission ad-revive — a mission is meant to be completed as a clean scenario. What you earn: mastery objective completions (tracked in a catalogue) and an unlockable Mastery cosmetic set.
Daily Challenge
A fresh, five-round run seeded from the calendar date, so every player who plays on the same day faces the exact same enemies, types, and maps — a fair, comparable test. Four combat rounds lead into a boss on round five. Your best score for each date is saved locally, and the menu shows whether you have already played today. It is the ideal quick daily session and a reason to come back every day. What you earn: a best-of-day score, plus Salvage (the game's earn-only currency).
Endless Survival
An unbounded escalating run with no finish line — it ends only when your tank is destroyed, then shows a results summary. Difficulty climbs continuously, so the goal is simply to last one more wave than last time. The game keeps your lifetime best wave and best score, which makes Survival the natural home of the "beat my personal best" loop. What you earn: persistent best-wave and best-score records.
Weekly Mutator
"Mutator of the Week" is an opt-in, Survival-flavoured run that forces one rotating rule for the whole week, seeded from the ISO week so everyone gets the same twist. One week might double your damage; another might supercharge enemy fire. You reach it from a launch chip on the main menu rather than a separate nav button. It deliberately keeps no records, so it stays a pure, low-stakes "try something different" mode. What you earn: a change of pace and a weekly run to clear — no score pressure.
Fair on every mode
Across all modes the rules are the same: skill decides the outcome, not spending. There is no pay-to-win, no loot boxes, and the in-game Salvage currency is earn-only. On the web, any ads are optional rewarded ads you choose to watch; there are no forced interstitials and no purchases at all. Learn the deeper tactics in the Strategy Guide, check the FAQ, or start playing now.