IMHO.

Single-player games like ZERO Sievert 2

Below are 9 single-player Steam games similar to ZERO Sievert 2, 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 ZERO Sievert 2 page.

Ranked picks

  1. 1
    Escape from Junglekov — Steam game cover

    Escape from Junglekov

    Single-player alternative to ZERO Sievert 2 — playable solo, no multiplayer required. Shares Action and Indie with ZERO Sievert 2.

    Use limited resources to try to acquire more equipment, and then continuously explore the scene to survive.

    2026ActionStrategyIndie3.19 USDSingle-playerSimilar games →
  2. 2
    Brawl Squad X: Battle Arena — Steam game cover

    Brawl Squad X: Battle Arena

    Single-player alternative to ZERO Sievert 2 — playable solo, no multiplayer required. Shares Action and Indie with ZERO Sievert 2.

    Fast-paced top-down multiplayer shooter with offline bot battles and online PvP. Play team deathmatch solo or with friends, unlock weapons, customize loadouts, and enjoy chaotic arcade-style combat with full progression online or offline.

    2026ActionIndieCasual11.19 USDSingle-playerSimilar games →
  3. 3
    Z-Company — Steam game cover

    Z-Company

    Single-player alternative to ZERO Sievert 2 — playable solo, no multiplayer required. Shares Action and Indie with ZERO Sievert 2.

    You and your friends can be part of the Z-Company. Defend Targets against huge hordes of zombies with all kinds of weapons and buildings in this Tower-Defense/Shooter hybrid.

    2021ActionIndieCasual3.99 USDSingle-playerSimilar games →
  4. 4
    No Escape from Madness — Steam game cover

    No Escape from Madness

    Single-player alternative to ZERO Sievert 2 — playable solo, no multiplayer required. Shares Indie and Adventure with ZERO Sievert 2.

    No Escape from Madness is a thrilling shooting adventure game that blends Lovecraftian elements with extraction gameplay. You will guide the self-sacrificing infantry operators into the Sector where The Elder One is poised to descend.

    2025IndieAdventureRPG5.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Dinogen Online — Steam game cover

    Dinogen Online

    Single-player alternative to ZERO Sievert 2 — playable solo, no multiplayer required. Shares Action and Indie with ZERO Sievert 2.

    Action-packed 2D multiplayer top-down shooter. Play as a human or dinosaur with hundreds of weapons, game modes, and maps!

    2023ActionStrategyIndieFreeDeck PlayableSingle-playerSimilar games →
  6. 6
    The Last Camp — Steam game cover

    The Last Camp

    Single-player alternative to ZERO Sievert 2 — playable solo, no multiplayer required. Shares Indie with ZERO Sievert 2.

    This is a top-down survival-building game blending farming, tower defense, and micromanagement, requiring you to fend off zombie hordes, grow crops, and strategically deploy traps to defend your homestead.

    2025IndieRPG2.99 USDSingle-playerSimilar games →
  7. 7
    Eldorado FPS — Steam game cover

    Eldorado FPS

    Single-player alternative to ZERO Sievert 2 — playable solo, no multiplayer required. Shares Action and Indie with ZERO Sievert 2.

    Eldorado FPS: A thrilling FPS adventure with diverse modes - Deathmatch, Team Deathmatch, Capture the Flag, Gun Mode, and Zombie Survival. Customize load-outs, compete globally, and rise in the ranks. Intense action, strategy, and endless fun await!

    2024ActionIndieEarly Access0.99 USDSingle-playerSimilar games →
  8. 8
    RUNNING WITH RIFLES — Steam game cover

    RUNNING WITH RIFLES

    Single-player alternative to ZERO Sievert 2 — playable solo, no multiplayer required. Shares Action and Indie with ZERO Sievert 2.

    RUNNING WITH RIFLES is a top-down tactical shooter with open world RPG elements. In RWR, you join the ranks of an army as a common soldier, just like the thousands around you.

    2015ActionIndie14.99 USDDeck VerifiedSingle-playerSimilar games →
  9. 9
    SHORE — Steam game cover

    SHORE

    Single-player alternative to ZERO Sievert 2 — playable solo, no multiplayer required. Shares Action and Indie with ZERO Sievert 2.

    Stuck in the middle of the ocean, survive together on a fragile physics-based raft. Fight storms, tsunamis, sharks, and starvation as you find your way back home in SHORE, a 1-4-player co-op survival adventure.

    2026ActionIndieAdventureSingle-playerSimilar games →