Undead Siege: Zombie Survival

Undead Siege: Zombie Survival

Bullet-Hell Rescue Campaign

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  • Released
  • Updated
  • July 13, 2026
  • September 8, 2026

Features

Undead Siege: Zombie Survival screenshot #1 for iPhone
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About

They took your family. Fifty worlds stand between you and them. You are a prince whose spouse and child were abducted. Their captors' portal jumps from world to world, and you follow it on foot — one siege at a time, in order, from the first world to the fiftieth. A CAMPAIGN YOU WALK IN ORDER Fifty distinct battlefields, each with its own name, terrain, and horde. There is exactly one way to reach the next one: hold the whole clock without a break. Go down or get overrun, and the world stays yours to retry. Difficulty climbs across five generations, and the harder the tier you choose, the longer the world asks you to hold. FIGHT FOR YOUR SIGHT LINES Every world lays out its own walls, wreckage, and alien growths. Cover blocks your shots and theirs, reshapes the routes the horde takes, and forces you and every ranged enemy to work for a clear line. Drag anywhere to move; your survivor auto-fires on its own. Set fire priority to nearest when you need breathing room, or to strongest when one big thing has to fall first. THREE SURVIVORS, THREE DIFFERENT GAMES • Scrapper — marksman rifle. Scavenges far from the core, then welds it back together. The one who leaves. • Outrider — machine pistol, the roster's fastest cadence. The horde chases you, not the core. • Engineer — nailgun. Holds one lane at the beacon and turns the core itself into a weapon. Then set your stakes — Normal, Hard, or Nightmare. A tougher tier is a longer hold and a bigger score. LEVEL UP INSIDE EVERY RUN Cut down walkers, runners, spitters, bloaters, and towering Brutes for XP, then pick an upgrade at every level — fire rate, damage, pierce, multishot, regen, orbiting blades, a toxic aura, and more. A run can only open eight of the thirteen lines, so what you take is what you become; re-deals let you refuse a bad hand. Max the right pair and your weapon EVOLVES: a piercing Railgun, a detonating Flak Cannon, an overheating Meltdown barrel, a grinding Buzzsaw ring, a life-stealing Reactor Core, or Mag-gloves that pull every drop across the field. Six evolutions, and no two runs stack the same way. THE SIEGE OF THE DAY One run a day, and it is the same run for everyone on Earth: the same world, the same survivor, the same seed — and the same fixed loadout, so your Armory does not come with you and the scores are actually comparable. Unlimited attempts, and an optional Game Center leaderboard if you want a rank. AWARDS AND ORDERS Eighteen award tiers across six axes — endurance, skill, breadth, mastery, roster, difficulty — every one earned by playing and none of them for sale. A chain of orders teaches the upgrade lines, the evolutions and the difficulty ladder by telling you the single next step, and the result screen says how many runs away your next upgrade is. FACE THE BOSSES Hold long enough and the horde sends something bigger: the Abomination and the Warden, two boss-tier threats with their own bullet patterns. Every boss you put down drops 5 diamonds. BUILD THE CORE THAT KEEPS YOU ALIVE Coins buy permanent survivor perks — health, damage, speed, XP gain, scrap gain, a re-deal on a level-up hand, and a shorter cooldown on your ability. Diamonds upgrade the beacon itself: hull, self-repair, an energy shield, cannon bursts, and shock novas. Earn diamonds by downing bosses, by finishing runs, from awards and orders, from an optional rewarded ad, or buy a pack outright. AFTER THE FIFTIETH Clear all fifty worlds and the pursuit does not stop. Endless worlds keep generating at full difficulty, and overtime cycles boss after boss for as long as you can hold the line. Single-player. No account, no login. Fully playable offline; optional ads, purchases, leaderboards and save sync require a connection.
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What's New in Undead Siege

2.4

September 8, 2026

There is now a day everyone plays together. SIEGE OF THE DAY Every day, everywhere in the world: the same world, the same survivor, the same seed — and the same fixed loadout for everyone. Your Armory does not come with you, which is what makes the scores actually comparable. Unlimited attempts; the reward lands once a day. AWARDS Eighteen tiers across six axes — endurance, skill, breadth, mastery, roster and difficulty. Every one of them is earned by playing, and none of them can be bought. CAMPAIGN ORDERS The game now teaches its upgrades, its evolutions and its difficulty ladder, by telling you the next step in one line on the menu. GAME CENTER A daily leaderboard and a mirror of the awards. Sign in if you want to; if you never do, the game is complete and shows you your own best instead. WHAT IS NEXT The result screen now says how many runs away your next upgrade is. NIGHTMARE REBALANCED The top difficulty is a step now, not a wall. This release also carries the work of 2.2 and 2.3, which were never published: a rebalanced economy, capstone upgrades reachable in a normal run, iCloud save, a clearer end-of-run screen, and full Dynamic Type support.

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