IMHO.

Games like Primordium - Day Zero

If Primordium - Day Zero is your kind of game, the closest matches are bit Dungeon III, Streets of Rogue and Heat — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Primordium - Day Zero: Fight for survival in a sci-fi RPG! Take control of the Nexus' Commander and gather companions to grow your team, build bases using a vast array of AAA quality models, and customize your arsenal using countless combinations of modular attachments, items, armor, and weapons!

2019ActionIndieAdventureRPGFree to playWindowsby Behron Georgantas
Primordium - Day Zero — Steam game cover

Players who liked Primordium - Day Zero also play

Steam players who put hours into Primordium - Day Zero also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. bit Dungeon III

    WHY THIS

    Top pick for Primordium - Day Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Primordium - Day Zero.

    bitDungeonIII is a 2d action adventure game with rogue-lite elements. Randomly generated overworld and dungeons. Make allies with other players or kill them for their precious inventory items. Discover random items that greatly enhance and affect your character.

    2019ActionIndieAdventure9.99 USDDeck VerifiedSteam ↗
  2. Streets of Rogue

    WHY THIS

    Second-strongest match for Primordium - Day Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Primordium - Day Zero.

    Fight, sneak, and hack your way through randomly generated cities. It's like Nuclear Throne meets Deus Ex, mixed with the anarchy of GTA. Rogue-lite meets immersive sim, and goes completely insane.

    2019ActionIndieAdventure3.99 USDDeck PlayableSteam ↗
  3. Heat

    WHY THIS

    Third-strongest match for Primordium - Day Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Primordium - Day Zero.

    Survive the wilderness, build a home, raise a family, and expand your territory. Gain power as President, deliver justice as Sheriff, fight for your tribe as Chief, or show some southern hospitality as Governor. Begin your new life in 19th century America.

    2020ActionIndieAdventure19.99 USDSteam ↗
  4. Charlie Murder

    WHY THIS

    Ranked #4 for Primordium - Day Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Primordium - Day Zero.

    It’s a punk rock apocalypse! Team up with your friends to lead embattled punk rock band Charlie Murder in their epic quest to save the world from rival death metalers Gore Quaffer and their legions of evil.

    2017ActionIndieAdventure9.99 USDDeck VerifiedSteam ↗
  5. Heretic + Hexen

    WHY THIS

    Ranked #5 for Primordium - Day Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with Primordium - Day Zero.

    Step into the definitive re-release of two dark spell-casting shooters that shaped the genre. This enhanced restoration makes Heretic™ + Hexen™ available to new audiences and long-time fans with expanded accessibility across more platforms and languages than ever before.

    2025ActionAdventureRPG14.99 USDDeck VerifiedSteam ↗
  6. Borderlands 3

    WHY THIS

    Ranked #6 for Primordium - Day Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and RPG with Primordium - Day Zero.

    The original shooter-looter returns, packing bazillions of guns and a mayhem-fueled adventure! Blast through new worlds and enemies as one of four new Vault Hunters.

    2020ActionRPG59.99 USDDeck PlayableSteam ↗
  7. Serious Sam Classic: The First Encounter

    WHY THIS

    Ranked #7 for Primordium - Day Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Primordium - Day Zero.

    Serious Sam is a high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Year 2001!

    2019ActionIndie5.99 USDSteam ↗
  8. Serious Sam Classic: The Second Encounter

    WHY THIS

    Ranked #8 for Primordium - Day Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Primordium - Day Zero.

    Serious Sam Classic: The Second Encounter is a high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Month February 2002!

    2019ActionIndie5.99 USDSteam ↗

Plays great on Steam Deck

Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.

  1. bit Dungeon III

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Primordium - Day Zero.

    bitDungeonIII is a 2d action adventure game with rogue-lite elements. Randomly generated overworld and dungeons. Make allies with other players or kill them for their precious inventory items. Discover random items that greatly enhance and affect your character.

    2019ActionIndieAdventure9.99 USDDeck VerifiedSteam ↗
  2. Charlie Murder

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Primordium - Day Zero.

    It’s a punk rock apocalypse! Team up with your friends to lead embattled punk rock band Charlie Murder in their epic quest to save the world from rival death metalers Gore Quaffer and their legions of evil.

    2017ActionIndieAdventure9.99 USDDeck VerifiedSteam ↗
  3. Heretic + Hexen

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Adventure with Primordium - Day Zero.

    Step into the definitive re-release of two dark spell-casting shooters that shaped the genre. This enhanced restoration makes Heretic™ + Hexen™ available to new audiences and long-time fans with expanded accessibility across more platforms and languages than ever before.

    2025ActionAdventureRPG14.99 USDDeck VerifiedSteam ↗

Frequently asked about Primordium - Day Zero

Is Primordium - Day Zero free to play?
Yes — Primordium - Day Zero is a free-to-play title on Steam. You can install and play it without buying anything, though some games include optional in-app purchases.
Does Primordium - Day Zero have multiplayer or co-op?
Yes — Primordium - Day Zero supports multi-player play according to its Steam store listing (Multi-player, Cross-Platform Multiplayer, Online PvP).
What games are most similar to Primordium - Day Zero?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Primordium - Day Zero are bit Dungeon III, Streets of Rogue, Heat.
Who developed Primordium - Day Zero?
Primordium - Day Zero was developed by Behron Georgantas and published by Fractum Innovations.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Primordium - Day Zero.

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