1B Outbreak: Zombie Shooter

Content rating
Mature 17+
0+
Downloads
Content rating
Mature 17+
Intense Violence, Blood and Gore
Learn more
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About this game

1B Outbreak is a first-person zombie shooter built for your phone. Fight through a 30-mission campaign across 10 maps, upgrade your arsenal and take down six giant bosses. No ads, no purchases, no Internet needed.

★ A REAL CAMPAIGN
• 30 missions on 10 maps: a container yard, a suburb, a cemetery, the subway, a hospital, a mall, a forest camp, an industrial plant, the sewers and the rooftops
• Survive, defend, escort, hold the zone or grab supplies and run for it — and every map ends in a boss fight
• Endless mode on every map, a new Daily Mission every day and the Classic Arcade mode
• 3 difficulties: Easy, Normal and Hard

★ THE HORDE
• 13 kinds of zombie: walkers, runners, riot cops, bloaters, screamers, burning zombies, dogs, tanks and more
• 13 monsters that leap, spit acid, burrow, swarm — or only exist inside your flashlight beam
• 6 bosses — the Butcher, the Broodmother, the Lasher, the Warden, the Siren and the Furnace — each with its own way to bring it down

★ GEAR UP
• 11 weapons: pistol, SMG, assault rifle, shotgun, marksman rifle, machine gun, flamethrower, grenade launcher, minigun, railgun and machete
• Upgrade damage, magazine, reload and recoil, and unlock perks
• Earn cash, climb the ranks and chase 28 achievements

★ PLAY YOUR WAY
• Touch controls with aim assist, or aim with the gyroscope
• Gamepad and keyboard & mouse support
• Editable control layout and left-handed mode
• Color-blind markers and subtitles for sounds

★ OUR OWN 3D ENGINE
• Dynamic lights, real-time shadows, fog, volumetric light and a flashlight your life depends on
• Graphics presets that adapt to your device
• Every model, texture and sound is generated by code — small download

★ NO ADS, NO PURCHASES, WORKS OFFLINE
No ads, no in-app purchases, no accounts, no tracking. The only permission is vibration, and the game works fully offline.

★ GOOD TO KNOW
• Intense violence and gore. For adults only.
• Landscape only. Available in 21 languages.

Made by 1Byte Systems — https://1bytesystems.com
Zombie FPS campaign: 30 missions, 6 bosses, 11 guns. Plays fully offline.
Updated on
Oct 30, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

1B Outbreak 1.1: the night now starts with a show
• The 1B Games logo when the game starts (one tap skips it)
• A cinematic intro on the first launch, and WATCH INTRO on the title screen
• An illustrated loading screen for each of the ten maps
• Sixteen real tips while the map loads, in all 21 languages
Content rating
Mature 17+
Intense Violence, Blood and Gore
Learn more

App support

About the developer
MARTIN CID MAGAZINE SL.
admin@1bytesystems.com
CALLE VALLE DE LENIZ 21 28660 BOADILLA DEL MONTE Spain
+34 677 40 89 96

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