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Watch trailer on Steam ↗CODEX MORTIS
GROLAF · Published by CRUNCHFEST
Mostly Positive — 76% positive (91 reviews) · 96 achievements
Last updated 28 Sept 2026
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.
£2.71
£3.39Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Action, Indie, RPG, Early Access · 2026 · More under £5 games
Command your necromantic forces through a bullet hell of spell synergies. With Grolaf’s unique AI-driven development, explore endless builds solo or with friends in this action-packed RPG from the future.
About this game
Codex Mortis is a necromantic survival bullet hell where you wield the forbidden powers of death against an armies of the undeads. Command minions, forge devastating spell combinations, and fight alongside powerful heroes—solo or in local coop—in your quest for ultimate power.
Plan before you slaughter. Assemble your death squad and equip them for annihilation—before the mission begins. Craft your necromancer from dozens of unique skills across five schools of dark magic, theory-craft lethal synergies, and design builds that will paint the battlefield with chaos.
Once the mission starts, watch your masterpiece unfold: detonate corpses, command undead armies, sacrifice blood for apocalyptic explosions. The more you combine, the more beautiful the DESTRUCTION.
DEVASTATING SPELL SYNERGIES
Mix and match spells across 5 schools of dark magic:
Necromancy - Bone spears, corpse explosions, skeletal prisons
Summoning - Raise undead armies and bone golems
Blood Magic - Sacrifice life for devastating power
Soul Magic - Harvest essence, phase through enemies
Curses - Break enemy will, spread terror and confusion
Combine spells for devastating effects. Blood Magic + Necromancy = burning explosions. Curses + Summoning = terrorized enemies trapped by undead legions.
EIGHT LEVELS
Find perfect builds for eight levels available in Early Access: Forgotten Graveyard, Sand Tomb, Cursed Catacombs, Bone Cathedral, Void Sanctum, Soul Nexus, The Throne Room, North Pole.
INFINITE BUILD VARIETY
Mix active spells across magic schools for unique combinations
Command Heroes with their own abilities (or play co-op with friends!)
Equip Artifacts that grant powerful bonuses
Deep progression - upgrade damage, cooldowns, health, speed, and more
Procedurally generated worlds - every run is different
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 11
- Processor: Intel Core i3-2100 / AMD FX-4300
- Memory: 4 GB RAM
- Graphics: NVIDIA GeForce GTX 650 / AMD Radeon HD 7750 / Intel HD Graphics 4000 / 1 GB VRAM
- Storage: 140 MB available space
- Sound Card: Any
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
Latest news
AnnouncementsOfficial
Full Release Is Close, Codex Mortis Is 20% Off!
Hi Necromancers! Full release is getting close, so if you have been waiting to pick up Codex Mortis, we started a 20% off sale today.What is coming in the full release:Every map is isometric nowWe are adding more heroesMore skills, so there is more to combine and more room to build around a specific destruction plan.More Apocrypha levels The biggest change is that, in the full version of the game, we are rebuilding how you put your build together. In full release, you will build your own deck and open booster packs to get new skills and spells, so what you have to work with grows as you play.Thanks for playing,The Codex Mortis teamRead full article on Community Announcements (Alex)AnnouncementsOfficial
Beta Tests of the Full Release
Hi Necromancers! If you want to help us making final polishes before full release, we kindly invite you to join our Discord server and visit #join-beta-codex-mortis.It is not the stable branch, so expect bugs and balance moving around. Here is what you can test right now: Story mode maps are isometric. Forgotten Graveyard, Sand Tomb and Blood Bath with a full art pass.The new hero roster and character skins. Every sprite regenerated for the new perspective.The new skills. Five new schools next to the original five, all with their final visuals, and every skill now has a cast time stat separate from cooldown.Apocrypha is still work in progress- CRUNCHFEST & GROLAFRead full article on Community Announcements (Alex)AnnouncementsOfficial
Road to Full Release
Hi Necromancers! Right, time for a proper catch up. We have been quiet for a bit and there is a good reason for that, because we are getting the game ready for full release and a lot of things got torn apart and put back together in the meantime.Here is what has been going on in the crypt.The whole game is isometric nowThis is the big one and it is the reason everything else took as long as it did. We moved CODEX MORTIS from the old top down view to an isometric perspective. Every character sprite in the game is new. While we were there we also grew the playable roster to 31 characters. 200 skills, 10 schoolsHarvest, Death Knight, Spiritism, Desolation and Apothecary are alongside the original five. Feedback from the last beta round was that too many skills were still on placeholder visuals; every skill now has its final art implemented. Cast time on every skill.This one needs a little explanation, because on paper it looks like a nerf. Some of you got a cooldown reduction all the way down to zero, and at that point a skill could fire on literally every frame. It looked ridiculous, it made fights impossible to read, and it quietly ate the balance of everything around it. So every skill now has a cast time stat, which is its own thing and separate from cooldown.In practice: your fast build is still a fast build. A cast just has to finish before the next one starts. We would rather you see what is happening on screen than watch one skill turn the entire level into slopfest.New levels, work in progressThere are new levels coming for full release. One of them already has its complete art in the build plus a first draft of its mechanics. The others are still at the scribbles and rough concepts stage, so we are not showing them yet, and nothing there is locked in.Thank you for playing CODEX MORTIS. Feel free to join our Discord if you wanna know more about what’s going on behind the scenes. - CRUNCHFEST & GROLAFRead full article on Community Announcements (Alex)AnnouncementsOfficial
Codex Mortis is 20% OFF + New Beta
Hello Necromancers!To celebrate Summer Sale, Codex Mortis is 20% off right now! COMING AT FULL RELEASEFull Release is fast approaching, so let’s see what you can expect in the full version of Codex Mortis:STORY MODE, revitalized - updating graphic of EVERY map in the game Everything from current Discord beta - 200 skills, 10 schools (including the five new ones), and the Mutation SystemMutations and synergies, completed across the entire roster - plus a full skill balance pass.A wave of new playable heroesAPOCRYPHA - the 2nd chapter of the story campaign - finished and complete.THE DISCORD BETAIf you want to help us making final polishes before full release, we kindly invite you to join our Discord server and visit #join-beta-codex-mortis.So what’s new in beta:Five NEW schools of magic join the originals:Harvest - the scythe made law. Sweeping melee and wide AoE reaping.Death Knight - heavy melee in cursed steel. Cleaves, ripostes, and thundering charges.Spiritism - spirit turrets, totems, urns, and circles. Battlefield control and summons.Desolation - a desert plague. Sand specters, shifting zones, and creeping decay over time.Apothecary - dark alchemy. Elixirs, potions, transmutation, and blight that buff, debilitate, and scale your power.The Mutation System. Branching upgrades that twist your skills mid-run and bend a build into something new. 46 skills already pre-existing, with more coming. Coming soon in the beta (in progress now):23 more skills already visible but not yet purchasable - 10 Summoning and 13 Curses.Skill synergies.The remaining mutations.Read full article on Community Announcements (Alex)Community & EventsOfficial
Codex Mortis Joins Bullet Hell Fest!
Hi everyone,We’re happy to announce that Codex Mortis is taking part in Bullet Hell Fest! It's a great time to join the fun as we’ve just added to new story levels, and more are coming soon :) Apocrypha The Chapel Of Perpetual BloomRead full article on Community Announcements (Alex)
