IMHO.

Games like CODEX MORTIS

If CODEX MORTIS is your kind of game, the closest matches are Sundered Soul: Chains of the Undying, Dusk Hunters and Shardstorm — picked from the ranked list below. Reviewers single out its chaotic spell slinging destruction, atmospheric and challenging. 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 CODEX MORTIS: Death is your weapon. Mix five schools of dark magic, unleash devastating spell synergies, and raise undead armies in this necromantic bullet hell. Infinite builds, solo or co-op – embrace the forbidden and dominate. 100% AI-driven development.

2026ActionIndieRPGEarly Access3.99 USDDeck VerifiedWindows · Linuxby GROLAF
CODEX MORTIS — Steam game cover
Players highlight
Chaotic spell slinging destructionDeep synergy system between spells and artifactsHigh replayability through varied buildsAtmosphericChallengingDark

Players who liked CODEX MORTIS also play

Steam players who put hours into CODEX MORTIS 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. Sundered Soul: Chains of the Undying

    WHY THIS

    Top pick for CODEX MORTIS fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with CODEX MORTIS.

    Sundered Soul: Chains of the Undying is a fast-paced twin-stick action roguelite focused on manual aiming, dodging, and skill-based combat. Choose from 9 distinct classes with unique playstyles. Fight to break an eternal curse—where every victory is earned and every mistake is lethal.

    2025ActionIndieRPG7.99 USDSteam ↗
  2. Dusk Hunters

    WHY THIS

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

    Dusk Hunters is a dark fantasy roguelite action RPG where you battle relentless forces of darkness in brutal skill-based combat. Wield powerful abilities, craft devastating builds, and challenge ruthless bosses at the end of every run.

    ActionIndieRPGSteam ↗
  3. Shardstorm

    WHY THIS

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

    After the Echo's fall, her shattered sins awoke once more. Shardstorm is a deep, replayable horde-survivor ARPG. Wield seven sentient Shards, battle towering Sin bosses, and break the game with infinite weapon scaling, skill trees, and legendary loot. Survive the storm. Shape your Wrath.

    ActionIndieRPGSteam ↗
  4. Noobs Are Coming

    WHY THIS

    Shares a challenging mood with CODEX MORTIS.

    Ranked #4 for CODEX MORTIS fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with CODEX MORTIS.

    YOU ARE THE FINAL BOSS. Brutal synergy arena roguelike. Pick your Final Boss character, equip boss patterns and combine tons of attacks to create unique builds. Play solo or in co-op!

    2025ActionIndieRPG7.99 USDDeck VerifiedSteam ↗
  5. ECHO //syntax

    WHY THIS

    Ranked #5 for CODEX MORTIS fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with CODEX MORTIS.

    Awaken. Scavenge. Survive.ECHO//syntax is a beat-em-up scrapper game set in a far future robotic world.

    ActionIndieAdventureSteam ↗
  6. Royal Revolt Survivors

    WHY THIS

    Shares bullet hell, auto battle and action with CODEX MORTIS.

    Ranked #6 for CODEX MORTIS fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with CODEX MORTIS.

    Unleash chaos in an electrifying 1-4 player co-op where survival and action-roguelite collide! Battle through relentless enemy hordes with a powerful mix of melee and ranged combat, navigating varied and dynamic environments.

    2026ActionIndieAdventure6.69 USDDeck VerifiedSteam ↗
  7. INTO EVIL

    WHY THIS

    Shares an atmospheric mood with CODEX MORTIS.

    Ranked #7 for CODEX MORTIS fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with CODEX MORTIS.

    Hotline Miami x Dark Souls. Greatswords, demons, miniguns; up to 4 players. You are not prepared.

    2025ActionIndieAdventure14.99 USDDeck VerifiedSteam ↗
  8. Last Mage

    WHY THIS

    Shares spell casting, bullet hell, indie and an atmospheric mood with CODEX MORTIS.

    Ranked #8 for CODEX MORTIS fans by collaborative filtering across millions of Steam libraries. Shares Action and RPG with CODEX MORTIS.

    Spellcrafting and backpack management combined in one bullet heaven rougelite. As the Last Mage you get a task to explore dungeons filled with monsters and find the source of the disaster plaguing this world.

    2026ActionRPGEarly Access9.99 USDDeck PlayableSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below CODEX MORTIS at current Steam store prices.

  1. POSTAL 2

    WHY THIS

    Priced ~75% under CODEX MORTIS on Steam right now. Shares Action and Indie with CODEX MORTIS.

    Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?

    2012ActionIndieAdventure0.99 USDDeck VerifiedSteam ↗
  2. The Test

    WHY THIS

    Priced ~50% under CODEX MORTIS on Steam right now. Shares Indie and RPG with CODEX MORTIS.

    You will answer a series of questions that will reveal truths from deep within. These questions may make you uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and if you do, are you sure you want the answers you seek?

    2020IndieAdventureSimulation1.99 USDDeck VerifiedSteam ↗
  3. Milk inside a bag of milk inside a bag of milk

    WHY THIS

    Priced ~63% under CODEX MORTIS on Steam right now. Shares Indie with CODEX MORTIS.

    A short story about what sort of challenges everyday little things can be. Help the girl buy milk, be the first not to disappoint her.

    2020IndieAdventure1.49 USDDeck PlayableSteam ↗
  4. Blood and Bacon

    WHY THIS

    Priced ~75% under CODEX MORTIS on Steam right now. Shares Action with CODEX MORTIS.

    This Co-op Shooter , has Day and Night levels, multiple maps, players will take on 25 enemy types and numerous bosses, like Gargantuan Monsters and Minibosses every 10 days as you explore, shoot and run for your life against the onslaught of porcine monstrosities.

    2016ActionAdventureCasual0.99 USDSteam ↗
  5. shapez

    WHY THIS

    Priced ~75% under CODEX MORTIS on Steam right now. Shares Indie with CODEX MORTIS.

    shapez is an easy-going, minimalistic factory building game about the automation of shapes through extraction and satisfying production lines. Adapt to increasingly complex shapes and grow your factory across an infinitely expanding map. Your only limitation is your creativity!

    2020StrategyIndieSimulation0.99 USDDeck PlayableSteam ↗
  6. The Test: Hypothesis Rising

    WHY THIS

    Priced ~50% under CODEX MORTIS on Steam right now. Shares Indie and RPG with CODEX MORTIS.

    The second chapter in The Test trilogy. Answer a series of in-depth questions to reveal hidden truths about yourself and unlock secrets to discover how your life can change drastically with just a few, slight modifications. ...But are you sure you want the answers you seek?

    2020IndieAdventureSimulation1.99 USDDeck VerifiedSteam ↗
  7. The Test: Final Revelation

    WHY THIS

    Priced ~50% under CODEX MORTIS on Steam right now. Shares RPG with CODEX MORTIS.

    The third chapter in The Test Trilogy. Answer a series of in-depth questions to reveal hidden truths about yourself and unlock secrets to discover who you really are as a person. The Final Revelation is upon us... but are you sure you TRULY want the answers you seek?

    2020SimulationRPG1.99 USDDeck VerifiedSteam ↗
  8. The NOexistenceN of you AND me

    WHY THIS

    Priced ~50% under CODEX MORTIS on Steam right now. Shares Indie and RPG with CODEX MORTIS.

    Use "game" as a medium to showcase the world of "you/girl". Explore the truth of "you/girl/world" through the form of a "visual novel".

    2024IndieAdventureRPG1.99 USDDeck VerifiedSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. The Expendabros

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with CODEX MORTIS.

    The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.

    2014ActionIndieAdventureFreeDeck VerifiedSteam ↗
  2. Iron Snout

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with CODEX MORTIS.

    Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.

    2016ActionIndieFree To PlayFreeDeck PlayableSteam ↗
  3. Star Fetchers

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with CODEX MORTIS.

    The introduction to a wild ride with gangsters and deep state conspiracy theories

    2020ActionIndieAdventureFreeDeck PlayableSteam ↗
  4. Eternal Senia

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with CODEX MORTIS.

    Thoughts and expectations ARPG

    2015ActionIndieRPGFreeDeck PlayableSteam ↗
  5. Disfigure

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with CODEX MORTIS.

    Disfigure is a grim-dark action rogue-like where you battle relentless hordes of monsters lurking in the shadows. Unlock powerful weapons, craft god-like builds with hundreds of upgrades, slay colossal bosses, and push your limits in intense 20–30 minute survival runs!

    2023ActionIndieFreeDeck PlayableSteam ↗
  6. Tails Noir: Prologue

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and RPG with CODEX MORTIS.

    Tails Noir: Prologue is the first act of a post-noir narrative adventure. Become raccoon private eye Howard Lotor and explore dystopian Vancouver inhabited by animals as you uncover a deeply personal story of change and transformation.

    2019IndieAdventureRPGFreeDeck PlayableSteam ↗
  7. Princess Remedy in a World of Hurt

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with CODEX MORTIS.

    Remedy, a recent graduate from the Saturnian healing school, must descend to Hurtland and use her powers to heal everyone from stray ducks to dark lords, and finally cure the ailing Prince Hingst. It's a short, whimsical adventure with plenty of heart(s).

    2016ActionIndieAdventureFreeDeck PlayableSteam ↗
  8. Moonring

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares RPG with CODEX MORTIS.

    A dark-fantasy, turn-based, retro-fusion of classic turn-based RPGs and roguelikes, all presented with a unique neon aesthetic.

    2023RPGFreeDeck VerifiedSteam ↗

Plays great on Steam Deck

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

  1. Noobs Are Coming

    WHY THIS

    Shares a challenging mood with CODEX MORTIS.

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with CODEX MORTIS.

    YOU ARE THE FINAL BOSS. Brutal synergy arena roguelike. Pick your Final Boss character, equip boss patterns and combine tons of attacks to create unique builds. Play solo or in co-op!

    2025ActionIndieRPG7.99 USDDeck VerifiedSteam ↗
  2. Royal Revolt Survivors

    WHY THIS

    Shares bullet hell, auto battle and action with CODEX MORTIS.

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with CODEX MORTIS.

    Unleash chaos in an electrifying 1-4 player co-op where survival and action-roguelite collide! Battle through relentless enemy hordes with a powerful mix of melee and ranged combat, navigating varied and dynamic environments.

    2026ActionIndieAdventure6.69 USDDeck VerifiedSteam ↗
  3. INTO EVIL

    WHY THIS

    Shares an atmospheric mood with CODEX MORTIS.

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with CODEX MORTIS.

    Hotline Miami x Dark Souls. Greatswords, demons, miniguns; up to 4 players. You are not prepared.

    2025ActionIndieAdventure14.99 USDDeck VerifiedSteam ↗

Frequently asked about CODEX MORTIS

Is CODEX MORTIS verified for Steam Deck?
Yes — CODEX MORTIS is Steam Deck Verified, meaning Valve has confirmed it runs well on the Deck with full controller, text legibility, and default configuration support.
How much does CODEX MORTIS cost?
CODEX MORTIS is listed on Steam at 3.99 USD (current store price; Steam sales may reduce this temporarily).
Does CODEX MORTIS have multiplayer or co-op?
Yes — CODEX MORTIS supports multi-player play according to its Steam store listing (Multi-player, Shared/Split Screen Co-op, Co-op).
What games are most similar to CODEX MORTIS?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside CODEX MORTIS are Sundered Soul: Chains of the Undying, Dusk Hunters, Shardstorm.
Who developed CODEX MORTIS?
CODEX MORTIS was developed by GROLAF and published by CRUNCHFEST.

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 CODEX MORTIS.

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