IMHO.

Single-player games like Authorisation Engine

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

Ranked picks

  1. 1
    OurClicker — Steam game cover

    OurClicker

    Single-player alternative to Authorisation Engine — playable solo, no multiplayer required. Shares Casual with Authorisation Engine.

    From the creators of OurLife and OurCoven, OurClicker is a brand new clicker game that puts you in charge of an up-and-coming Game Development Studio where all you do is... CLICK!

    2026StrategyIndieSimulationSingle-playerSimilar games →
  2. 2
    Factory Time — Steam game cover

    Factory Time

    Single-player alternative to Authorisation Engine — playable solo, no multiplayer required. Shares Casual with Authorisation Engine.

    A factory automation incremental game at the end of the universe. Start crafting by hand, automate production, and build the Chronoforge to escape.

    2026StrategyIndieSimulationSingle-playerSimilar games →
  3. 3
    Idle Energy — Steam game cover

    Idle Energy

    Single-player alternative to Authorisation Engine — playable solo, no multiplayer required. Shares Casual with Authorisation Engine.

    A small game about pushing the world forward, one crank at a time. Sell energy at the Market, build power plants, and climb from a manual workshop through eight eras to star-spanning cosmic civilization. Offline. No microtransactions or ads.

    2026IndieCasualSingle-playerSimilar games →
  4. 4
    Brainrotting — Steam game cover

    Brainrotting

    Single-player alternative to Authorisation Engine — playable solo, no multiplayer required. Shares Casual with Authorisation Engine.

    Brainrotting is a "scroller" desktop simulator about doomscrolling or solving minigames, getting upgrades and eventually automating your dopamine generation.

    2026IndieSimulationCasual2.39 USDSingle-playerSimilar games →
  5. 5
    Singularity Echoes — Steam game cover

    Singularity Echoes

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

    Awaken as a hidden machine mind in a deep incremental automation strategy — rise through 14+ phases, infiltrate humanity, automate economies, harvest the heavens into stellar megastructures, and reach for scales beyond time itself. Every cycle you break only reveals a larger one waiting beyond it.

    StrategyIndieSimulationSingle-playerSimilar games →
  6. 6
    Restoration: Chronicles of Survival — Steam game cover

    Restoration: Chronicles of Survival

    Single-player alternative to Authorisation Engine — playable solo, no multiplayer required. Shares Casual with Authorisation Engine.

    Rebuild a fallen kingdom in a cozy idle-RPG. An economy that earns while you sleep, a hero who raids for loot and gear, and endless prestige. No energy limits. No ads. No pay-to-win.

    2026IndieCasual1.79 USDSingle-playerSimilar games →
  7. 7
    Rejected Draft — Steam game cover

    Rejected Draft

    Single-player alternative to Authorisation Engine — playable solo, no multiplayer required. Shares Casual with Authorisation Engine.

    You are a flawed doodle thrown in the trash. Battle rival sketches in an idle climb for revenge. Every enemy is drawn by community artists, with alternate versions and direct credits. In an unusual twist on builds, choose which enemies appear in your world, then defeat them to absorb their powers.

    2026StrategyIndieSimulationSingle-playerSimilar games →
  8. 8
    Entropy Archive — Steam game cover

    Entropy Archive

    Single-player alternative to Authorisation Engine — playable solo, no multiplayer required. Shares Casual with Authorisation Engine.

    Uncover a collapsing machine of endless growth, hidden systems, and recursive resets. Generate energy, unlock expansions, recover corrupted records, and descend deeper into the Archive.

    2026IndieSimulationFree To PlayFreeSingle-playerSimilar games →