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
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.
- 2
Rejected Draft
Single-player alternative to Authorisation Engine — playable solo, no multiplayer required. Shares Casual with Authorisation Engine.
You are a flawed doodle that was thrown in the trash. Battle rival sketches, absorb their powers, and seek your ultimate revenge. Watch numbers soar in this second-screen idle battler. Massive skill tree and randomized prestige mechanic means every journey is distinct.
- 3
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.
- 4
System Ascension: Idle Core
Single-player alternative to Authorisation Engine — playable solo, no multiplayer required. Shares Casual with Authorisation Engine.
Take control of The System. Master multiple interlocking power sources to build a singular, planetary engine in this narrative idle game. Features a fully voiced story, minimalist UI, and cross-platform play. The old world must fall for The System to rise.
- 5
Knightfall Idle
Single-player alternative to Authorisation Engine — playable solo, no multiplayer required.
Developed by Gibber, Knightfall Idle is a free to play, infinite-progression idle game. Master a living economy through a player-driven Auction House while gathering resources, fighting enemies, farming, trading, and managing your kingdom.
- 6
Slots & Diapers
Single-player alternative to Authorisation Engine — playable solo, no multiplayer required. Shares Casual with Authorisation Engine.
Absurd incremental game where you turn even liquid assets into financial glory! Spin for jackpots and hire veteran gamblers to automate the madness. Use permanent upgrades and 'mishaps' to accelerate your progress! Simple. Messy. Addictive.
- 7
Parkitect
Single-player alternative to Authorisation Engine — playable solo, no multiplayer required. Shares Casual with Authorisation Engine.
Parkitect is a business simulation game that charges you with the construction and management of theme parks! Bringing back the best of classic theme park games with many new features and content on top. Now supports online co-op with up to 8 players!
- 8
Kaizen: A Factory Story
Single-player alternative to Authorisation Engine — playable solo, no multiplayer required.
Kaizen is an open-ended puzzle automation game from the original Zachtronics team, set in 1980s Japan. Design, build, and optimize production lines to create iconic products, like calculators, camcorders, and arcade machines.