IMHO.

Single-player games like ProtoZED

Below are 12 single-player Steam games similar to ProtoZED, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like ProtoZED page.

Ranked picks

  1. 1
    Zombie Survival Game Online — Steam game cover

    Zombie Survival Game Online

    Single-player alternative to ProtoZED — playable solo, no multiplayer required. Shares Action and Adventure with ProtoZED.

    Zombie Survival Game Online is an open-world, post-apocalyptic, looter shooter. Craft, quest, explore, build, and fight for survival. Parkour up a mountainside, ramp a truck over a horde, and grab a gasmask to explore the sewers. Can you survive? Doubtful.

    2023ActionStrategyIndie3.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Project Zomboid — Steam game cover

    Project Zomboid

    Single-player alternative to ProtoZED — playable solo, no multiplayer required. Shares RPG with ProtoZED.

    Project Zomboid is the ultimate in zombie survival. Alone or in MP: you loot, build, craft, fight, farm and fish in a struggle to survive. A hardcore RPG skillset, a vast map, massively customisable sandbox and a cute tutorial raccoon await the unwary. So how will you die? All it takes is a bite..

    2013IndieSimulationRPG19.99 USDDeck VerifiedSingle-playerSimilar games →
  3. 3
    Crashlands — Steam game cover

    Crashlands

    Single-player alternative to ProtoZED — playable solo, no multiplayer required. Shares Action and Adventure with ProtoZED.

    Fight and tame alien beasts, craft resources into menacing weaponry, befriend the outlandish locals, and go toe-to-chin with a world-domineering maniac.

    2016ActionIndieAdventure14.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Welcome to ParadiZe — Steam game cover

    Welcome to ParadiZe

    Single-player alternative to ProtoZED — playable solo, no multiplayer required. Shares Action and Adventure with ProtoZED.

    Paradise isn't exactly what you hoped for: it's infested with zombies! Thankfully, you can control them. Capture them and teach them to farm or fight. They will help you defend our camp while you explore the world looking for… a new paradise.

    2024ActionAdventureRPG7.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    How to Survive — Steam game cover

    How to Survive

    Single-player alternative to ProtoZED — playable solo, no multiplayer required. Shares Action and Adventure with ProtoZED.

    “A real Gem” – Destructoid at E3 “Offers a different experience for zombie game veterans” – Co-Optimus“Has a lot more going for it than smashing brains and gory, red goo ... With a surprisingly deep crafting system” – GamesRadarYou're shipwrecked on an isolated island, a desperate castaway in a total freakshow world. How will you survive?

    2014ActionAdventureRPG14.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    7 Days to Die — Steam game cover

    7 Days to Die

    Single-player alternative to ProtoZED — playable solo, no multiplayer required. Shares Action and Adventure with ProtoZED.

    7 Days to Die is an open-world game that is a unique combination of first-person shooter, survival horror, tower defense, and role-playing games. Play the definitive zombie survival sandbox RPG that came first. Navezgane awaits!

    2024ActionStrategyIndie44.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Necesse — Steam game cover

    Necesse

    Single-player alternative to ProtoZED — playable solo, no multiplayer required. Shares Action and Adventure with ProtoZED.

    Build, quest, and conquer across an infinite procedurally generated world. Play alone or with friends as you establish a settlement and explore deep dungeons, fight monsters and bosses, mine rare ores, craft magical equipment, recruit specialists for your colony, and more!

    2025ActionIndieAdventure14.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Night of the Dead — Steam game cover

    Night of the Dead

    Single-player alternative to ProtoZED — playable solo, no multiplayer required. Shares Action and Adventure with ProtoZED.

    'Night of the Dead' is an open-world game that combines elements of exploration, tower defense, survival, and crafting. Traverse a world dominated by zombies while collecting various resources and powerful equipment. Build a fortress to survive the hordes of zombies that swarm every night!

    2024ActionIndieAdventure29.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Corduroy Hollow — Steam game cover

    Corduroy Hollow

    Single-player alternative to ProtoZED — playable solo, no multiplayer required. Shares Action and Adventure with ProtoZED.

    Corduroy Hollow® is a first-person survival horror game set in a decrepit house in the middle of the woods tainted by evil and the occult. Discover the truth. Escape the mansion. Above all, fear the Corduroy Demon…and survive.

    ActionAdventureSingle-playerSimilar games →
  10. 10
    Abaddon's Veil — Steam game cover

    Abaddon's Veil

    Single-player alternative to ProtoZED — playable solo, no multiplayer required. Shares Adventure with ProtoZED.

    A short horror game where you pilot a tiny spaceship through turbulent "waters" surrounding a supermassive blackhole. Retrieve and scan sites of interest while managing your noise footprint.

    2024Adventure1.99 USDSingle-playerSimilar games →
  11. 11
    Improbability Control Bureau — Steam game cover

    Improbability Control Bureau

    Single-player alternative to ProtoZED — playable solo, no multiplayer required.

    Monitor live surveillance cameras. Spot anomalies. From eerie furniture shifts to unexpected intrusions, report anomalies to correct them and survive.

    2024IndieCasual3.99 USDSingle-playerSimilar games →
  12. 12
    DeResolution — Steam game cover

    DeResolution

    Single-player alternative to ProtoZED — playable solo, no multiplayer required. Shares Action and Adventure with ProtoZED.

    BANG...You awake to find yourself in a foreign place called the BIT-GRID. Explore, fight, and throw your vorpal frisbee to escape this digital landscape.

    2024ActionAdventure1.99 USDSingle-playerSimilar games →