Best Zombie Games on Steam

The zombie game never really died, it just kept mutating. One branch went co-op, handing four players a shotgun each and a corridor full of bodies to clear. Another went survival, where the horde is a weather system you plan around rather than an enemy you beat. A third kept the horror, making a single shambling figure in a corridor genuinely frightening again. These are the ones on Steam worth your time across all three branches, and because this is an achievement site, the notes call out what each completion actually asks of you.

1

Left 4 Dead 2

Still the cleanest four-player co-op shooter ever built around a horde, with an AI Director that rewrites each run and special infected that punish anyone who wanders off alone. Its 101 achievements are the blueprint everything below borrowed from: campaign clears, weapon gimmicks and a lot of very silly stunts.

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2

Dying Light

Parkour turns the zombie apocalypse into a traversal problem, and then night falls and turns it back into a horror game. 78 achievements spread across the campaign, the open world and its co-op challenges, with enough side content that a completion run is a genuine commitment.

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3

Resident Evil 2

The remake that proved slow zombies are still terrifying if bullets are scarce enough and the things you shot keep standing back up. Two campaigns, a stalker that hunts you between save rooms, and a 44-achievement list that pushes you into repeat runs on tighter rules.

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4

State of Decay 2: Juggernaut Edition

A community survival sim where every survivor is a person with needs, morale and a permanent death, so losing one hurts your base rather than just your run. At 153 achievements it is one of the biggest completions here, and most of it is earned through long-term base management rather than combat.

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5

Dead Island 2

Gleefully gory first-person melee built around a damage system that lets you dismantle the infected piece by piece. The 59 achievements lean into experimenting with weapon mods and environmental kills rather than grinding, which makes it one of the more enjoyable lists on this page.

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6

Days Gone

The game that made hordes an actual set piece, sending hundreds of freakers after you at once and forcing you to fight them with traps and terrain instead of a bigger gun. 67 achievements across a long open-world campaign, with a decent chunk tied to clearing those hordes.

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7

Dying Light 2 Stay Human: Reloaded Edition

A bigger, more vertical follow-up where faction choices reshape the city and the day-night split is even sharper. 65 achievements, several of which want you to commit to a faction or a play style rather than dabble in everything.

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8

World War Z

The horde here is a wave that climbs over itself to reach you, which makes chokepoints and placed defences matter more than aim. A compact 35-achievement list makes it the most realistic completion on this page for anyone short on time.

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9

Back 4 Blood

A card-driven take on the four-player horde shooter, where deck building changes your run before it starts and the corruption cards change it mid-level. 93 achievements, with the hardest tied to clearing acts on higher difficulties.

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10

7 Days to Die

Base building and looting between blood moons, with a voxel world you can dig into and a horde that will happily tunnel through whatever you built. Only 43 achievements, but they sit on top of a survival sandbox that can run for hundreds of hours.

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11

Killing Floor 2

Wave-based co-op against a bestiary of engineered horrors, built around perk levelling and a gore system that is the whole point. At 307 achievements it is by far the longest completion on this list, and most of that is levelling perks and clearing maps on Hell on Earth.

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Updated 2026-08-29. Every game links to its full SteamVault page with achievement stats, rarity and community completion times.