Zombie Siege Outbreak
In Zombie Siege Outbreak, cities have fallen, safe zones are tiny, and the vaccine saved only a handful of people. One of them is a veteran soldier who has already gone through real wars and now stands between the last survivors and endless zombie hordes. Swarms of infected rush the barricades of these protected areas, so fights go on nonstop as long as the defenses hold.
How to play?
Pick a character, then lock in a starting weapon loadout before the first clash with the undead. The game runs as a level-based zombie shooter, so every stage is a separate battle where zombies spawn and move straight toward you and the safe sector you defend. A short tutorial launches before the opening level and explains how to move, aim, fire, and clear lanes so no zombie slips through.
Finish the initial mission with basic gear, since there is not enough in-game money for stronger guns at the start. Destroy zombies to stack coins, then spend them between rounds on fresh weapons, extra equipment, and new looks for your fighter. Better gear helps wipe out tougher waves faster, which cuts the risk of getting overwhelmed when swarms pack the screen. Clear every zombie in a wave to close out the round and unlock the next firefight. Keep upgrading, hold the safe zones, and push the outbreak back before the last pockets of humans disappear.
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- control
- rifle
- aim
- reload
- chamber change
.
- change arms
- move the cursor
About this game:
- Players have rated this game 4.02 out of 5, based on 105 votes.
- Released in September 2021.
- Ready to play on Web Browser (PC).
- Age rating: 9+
- Powered by HTML5 (Unity WebGL) — jump right in and start playing in your browser, no downloads needed.
Game features:
- Story centers on a vaccinated military veteran protecting remaining safe zones from zombie swarms
- Each level acts as a contained firefight where zombies rush directly toward the defended sector
- Short tutorial appears before the first level to teach movement, aiming, and shooting basics
- Coins gained from destroying zombies fund new weapons, equipment, and character appearances between rounds
Tips & Tricks:
- Complete the tutorial carefully once so controls feel natural before facing dense waves
- Save early coins for a weapon upgrade that boosts damage instead of cosmetic items
- Target zombies that move on the shortest path toward the safe area first
- Open the shop after every round and check if a small upgrade fits your current coin total























