IMHO.

Single-player games like Speculators

Below are 8 single-player Steam games similar to Speculators, 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 Speculators page.

Ranked picks

  1. 1
    Frame of Suffering — Steam game cover

    Frame of Suffering

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

    Master both man and machine to escape the Ancient Temple. Customize your Hero and a modifiable Combat Frame to slay hordes and gatekeepers. Scavenge tech, uncover the Temple's history, and evolve your build in this Sci-Fi ARPG Roguelite. You're a prisoner - freedom lies at the heart of the Temple.

    2027ActionIndieAdventureSingle-playerSimilar games →
  2. 2
    SteelGuard — Steam game cover

    SteelGuard

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

    Pilot customizable mechs in an epic battle against hordes of enemiesor dive into intense PvP battles where precision aiming can turn the tide, or let your mech's auto-firing system handle the heat of combat. With rogue-lite elements, each run offers a unique challenge and opportunity for growth.

    ActionIndieRPGSingle-playerSimilar games →
  3. 3
    Vector Bias — Steam game cover

    Vector Bias

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

    Vector Bias is a mecha anime inspired rogue-like. Pilot a custom Vector(mecha) and engage in fast-paced aerial combat against flying mechanical enemies, evade entrenched defenses and battle giant bosses.

    ActionSingle-playerSimilar games →
  4. 4
    WoofWatch — Steam game cover

    WoofWatch

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

    Pilot a mech-suited dog through procedurally generated city districts and take down bosses built from what dogs fear most. Dodge, shoot, and stack absurd weapon effects to survive the chaos.

    ActionIndieAdventureSingle-playerSimilar games →
  5. 5
    Lethal Justice — Steam game cover

    Lethal Justice

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

    Fight waves of criminals, mutants and cyborgs while upgrading your firepower. Restore order in this dystopian city of the future where your choices determine whether you gain the upper hand or succumb to the streets. You are outnumbered, not outgunned.

    2026ActionIndieRPGSingle-playerSimilar games →
  6. 6
    Iron Grave:Planet 9 — Steam game cover

    Iron Grave:Planet 9

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

    Iron Grave: Planet 9 is a sci-fi mech survivor game. Pilot multiple mechs with unique skills and evolution, slaughter enemies, unlock upgrades. Set on the ninth planet over a century from now, fight alongside your squad and become a hero.

    2026ActionIndieAdventureSingle-playerSimilar games →
  7. 7
    Livelock — Steam game cover

    Livelock

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

    Livelock is a co-operative top-down shooter where you play solo or with up to two allies to break the cycle of infinite war between machines. As one of the remaining Capital Intellects, your role is to unlock Eden and revive humanity.

    2016ActionIndieAdventure0.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    CRYPTARK — Steam game cover

    CRYPTARK

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

    Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly alien space-hulks. It's up to you to strategize a plan of attack, pick an equipment loadout, and destroy the central core to be victorious.

    2017ActionStrategyIndie14.99 USDDeck VerifiedSingle-playerSimilar games →