IMHO.

Single-player games like The Age of Decadence

Below are 12 single-player Steam games similar to The Age of Decadence, 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 The Age of Decadence page.

Ranked picks

  1. 1
    Colony Ship: A Post-Earth Role Playing Game — Steam game cover

    Colony Ship: A Post-Earth Role Playing Game

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares RPG with The Age of Decadence.

    Colony Ship is a turn-based, party-based role-playing game set aboard a generation ship launched to Proxima Centauri. The game features a detailed skill-based character system, multiple ways to handle quests, choices & consequences, and branching dialogue trees.

    2023RPG39.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Wasteland 3 — Steam game cover

    Wasteland 3

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares RPG with The Age of Decadence.

    Following the critically acclaimed 2014 Game of the Year winner Wasteland 2, the RPG series that pioneered the post-apocalyptic genre in video games returns with Wasteland 3.

    2020StrategyRPG39.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Dungeon Rats — Steam game cover

    Dungeon Rats

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares Indie and RPG with The Age of Decadence.

    A turn-based, party-based RPG set in the Age of Decadence world and focused on squad level tactical combat. Fight your way out of prison mine or die trying.

    2016IndieRPG7.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Fallen: A2P Protocol — Steam game cover

    Fallen: A2P Protocol

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares Indie and RPG with The Age of Decadence.

    A post-apocalyptic, turn based, tactical combat and strategy game where you lead your caravan on a quest for revenge.

    2015StrategyIndieRPG9.99 USDSingle-playerSimilar games →
  5. 5
    Expeditions: Viking — Steam game cover

    Expeditions: Viking

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares Indie and RPG with The Age of Decadence.

    Circa 790 AD. A small band of Norse warriors lands on the shores of England. History may have forgotten their names, but their actions live on. As the chieftain of your clan, let ambition guide your choices in the party-based RPG Expeditions: Viking. How will history remember you?

    2017StrategyIndieRPG29.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Expeditions: Conquistador — Steam game cover

    Expeditions: Conquistador

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares Indie and RPG with The Age of Decadence.

    Conquer the New world: In the 16th Century, Spanish explorers and soldiers reached the shores of America. The search for gold, fame, and adventure drove these travelers into a treacherous wilderness where they faced hunger, disease, and dangerous predators. In their wake, the Aztec Empires lay in ruins.

    2013StrategyIndieRPG19.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Rogue Waters — Steam game cover

    Rogue Waters

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares RPG with The Age of Decadence.

    Rogue Waters is a Pirate Tactical Turn-Based Rogue-lite. Play as Captain Cutter, commanding your ship and crew through procedurally generated encounters to seek revenge. Recruit, train, and upgrade crew, use powerful sea creatures, and engage in dynamic naval and melee combat to gain the upper hand.

    2024ActionStrategyAdventure29.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    UnderRail — Steam game cover

    UnderRail

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares Indie and RPG with The Age of Decadence.

    UnderRail is an old-school turn-based isometric role-playing game that features a large open post-apocalyptic world, deep and challenging combat and an intricate storyline.

    2015IndieRPG14.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Fallout 4 — Steam game cover

    Fallout 4

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares RPG with The Age of Decadence.

    From Bethesda Game Studios, the award-winning creators of Starfield and The Elder Scrolls V: Skyrim, comes Fallout 4. A landmark in open-world RPG design and winner of over 200 ‘Best Of’ honors, including the DICE and BAFTA Game of the Year.

    2015RPG19.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Vagrus - The Riven Realms — Steam game cover

    Vagrus - The Riven Realms

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares Indie and RPG with The Age of Decadence.

    Embark on a perilous journey across a realm forsaken by the gods and devastated by an arcane cataclysm. Accompanied by a hardy crew, you must trade, fight, and explore your way to success as the leader of a traveling company in Vagrus, an award-winning turn-based post-apocalyptic fantasy RPG.

    2021StrategyIndieRPG29.99 USDDeck VerifiedSingle-playerSimilar games →
  11. 11
    Elysium — Steam game cover

    Elysium

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares Indie with The Age of Decadence.

    Wake up on a paradise-like abandoned island with your friends. Explore the lands of an ancient civilization and uncover the mysteries behind their collapse as you build, craft, and tame corrupted machines. Most importantly, survive the unwelcome lands of Elysium!

    2026ActionIndieAdventureSingle-playerSimilar games →
  12. 12
    Oblivion — Steam game cover

    Oblivion

    Single-player alternative to The Age of Decadence — playable solo, no multiplayer required. Shares Indie with The Age of Decadence.

    Oblivion is a short, story-driven first-person horror game. Uncover the truth hidden within an abandoned school — but beware, some memories were never meant to return.

    2025IndieAdventure0.99 USDSingle-playerSimilar games →