IMHO.

Single-player games like Gloomsday

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

Ranked picks

  1. 1
    Catacrypt — Steam game cover

    Catacrypt

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

    Catacrypt is an online co-op roguelite dungeon crawler. Enter procedurally generated dungeons to obtain powerful upgrades and craft unique weapons. Descend floors and fight increasingly harder enemies and bosses, all to reach the bottom.

    ActionIndieAdventureSingle-playerSimilar games →
  2. 2
    Soly: Brave Little Explorer — Steam game cover

    Soly: Brave Little Explorer

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

    Play as Soly, a lost child exploring a dark crypt. In this rogue-lite auto-shooter, every run takes you closer to the light or deeper into fear.

    ActionAdventureSingle-playerSimilar games →
  3. 3
    Rogue Fortune — Steam game cover

    Rogue Fortune

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

    A fast-paced action roguelite where your treasure is your health bar. Gamble your gold for the power to survive a hostile temple that wants it back. Arrange geometric relics into a puzzle grid to build devastating synergies.

    2027ActionAdventureRPGSingle-playerSimilar games →
  4. 4
    Neon Abyss 2 — Steam game cover

    Neon Abyss 2

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

    Dive into the cybermyth roguelike chaos of Neon Abyss 2! Now featuring up to 4-player online co-op, more combat styles, and unlimited item synergies, every run delivers a dramatic, action-packed experience you won't forget.

    2025ActionIndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Eldritch Climb: A Cursed Ascent — Steam game cover

    Eldritch Climb: A Cursed Ascent

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

    A physics-based roguelite where the mountain is alive, the items are cursed, and collecting Eyes only makes things worse. Swing your way to the top. It won't kill you. Probably.

    2025ActionIndieAdventure12.99 USDSingle-playerSimilar games →
  6. 6
    Protobouncer — Steam game cover

    Protobouncer

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

    The new world you’ve awakened in is much, much into the future, with creatures, areas and happenings unknown. As a humble ball designed to collect data, navigate your way through this new, harsh world alone or with 3 others in this sci-fi fast-paced, physics-based open roguelike experience.

    ActionAdventureEarly AccessSingle-playerSimilar games →
  7. 7
    The Secret Dungeon — Steam game cover

    The Secret Dungeon

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

    Embark on a 2-player adventure through vast, enchanted realms. Wield weapons, uncover powerful upgrades, and face dark magic as you explore a fallen kingdom. Easy to jump in, with depth for those who venture deeper into the dungeon's mysteries.

    2026ActionStrategyIndie1.99 USDSingle-playerSimilar games →
  8. 8
    Hellmachina Railbane — Steam game cover

    Hellmachina Railbane

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

    Hellmachina Railbane puts you in the role of a sealed war machine reborn through a pact with humanity. Together, you’ll rise against towering futuristic races armed with advanced sci‑fi tech & ancient magic.

    ActionIndieRPGSingle-playerSimilar games →