
A survivors-like deckbuilder with mutating spells and five schools of dark magic. Build devastating combos, battle through ten cursed levels, and spend earned points on booster packs. Survive the isometric bullet hell solo or in local co-op.
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0/day in the week to Sep 3 → 0.14/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
Codex Mortis is an isometric horde-survivor bullet hell whose roguelite loop runs on a spell deckbuilder. You play a necromancer. Before every mission you assemble a deck from the spells you own, then carry it into a battlefield filled with the undead, alone or with a friend in a local co-op. You spend the points you earn during a run on booster packs, each pack adds new spells to your collection, and those spells open builds you could not have assembled before.
Plan before you slaughter, because once the mission starts you fight with what you brought. Before every mission you assemble your loadout from the spells you own, and that loadout is your deck. A deck weighted toward Summoning wins the field by crowding it, with skeletons soaking the horde while you cast. A deck weighted toward Blood Magic hits harder and sacrifices your life to do it.
The points you earn on a run buy booster packs, and every pack adds spells to your collection, so your next deck comes out of a wider pool.
Mutations sit on top of the skills you carry and change the way they work. A mutation riding your bone spear sends it out in a pattern you have to learn again, and one on a summon calls up another archetype of undead. Others reshape the ground an area spell covers or give an aura a character of its own, so a spell you have cast a hundred times comes out of your hands changed.
Every spell in your collection belongs to one of the five schools of dark magic.
Necromancy: bone spears, corpse explosions and skeletal prisons.
Summoning: raise undead armies and bone golems.
Blood Magic: sacrifice life for power.
Soul Magic: harvest essence, phase through enemies.
Curses: break enemy will, spread terror and confusion.
Find perfect builds for ten levels available in Early Access: Forgotten Graveyard, Sand Tomb, Cursed Catacombs, Bone Cathedral, Void Sanctum, Soul Nexus, The Throne Room, North Pole, The Overgrown Grave, Chapel of Perpetual Bloom
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
Open card packs for new spells
Procedurally generated worlds - every run is different
Engagement
Reviews
Themes across 45 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
The game has some very creative synergy mechanics that makes it super interesting to create builds... It also has a good progression mechanics, including for very late game, I'm a hardcore player so I like this combination to go for ever higher difficulty levels... And it's nice because there is end-game progression as well, so you are always improving. It also has additional heroes that act as companions, which expands your opportunities, like leaving one of them just to apply curses, etc... And also, artifacts, which acts as another layer of customization to create different builds... Pretty good game overall IMO!
시원하게 밀어내는 재미는 있는데, 개선할 게 많다. 1. 화면이 다 가려져서 안 보인다. 투명도 조절 옵션이 필요하다. 1-1. 잡몹 크기 좀 줄여라. 1-2. 각 오브젝트에 충돌박스 없애라. 짜증만 난다. 2. 사막맵 바꿔야한다. 서바이벌류 게임하는 이유가 뇌빼고 편하게 하는건데, 의미없이 왔다갔다 불필요하다. 2-1. 샌드웜 못 죽이게 할 거면 출현빈도라도 줄여야한다. 피하지도 못 할 만큼 잔뜩 나오면 그냥 무시하고 맞게되는데, 그러면 이게 무슨 의미가 있나. 3. 시너지, 스킬범위 포함해서 컨텐츠는 추가하면 되겠지만, 지정된 시너지만 찾아 쓰기보단 스킬트리처럼 배열을 바꿔가며 조합을 짜게끔 하는게 나을 것 같다.
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
This and every other Pro feature is free until October 20, 2026. A free account is all it takes.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $6.1K | 52 | 58% | $4.99 | |
| $6.1K | 52 | 46% | $4.99 | |
| $6.1K | 218 | 93% | $3.99 | |
| $6.1K | 63 | 79% | $2.99 | |
| $6.1K | 53 | 98% | $5.99 | |
| $6.1K | 60 | 95% | $6.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $11.1K | 176 | 61% | $2.99 | |
| — | 78 | 82% | — | |
| — | 0 | — | — | |
| $23.1M | 251.6K | 98% | $4.99 | |
| $5.4K | 42 | 88% | $4.99 | |
| $83 | 2 | 50% | $1.99 |
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English, French, Italian, German, Spanish - Spain, Bulgarian, Simplified Chinese, Czech, Danish, Finnish, Greek, Spanish - Latin America +16 more
Hours played at review time, across 45 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
A Very bland and repetitive, seen it all before and miles better attempt at a roguelike, being in early access is not an excuse. Movement, combat, everything is too slow and dull. Sound is irritating. Difficulty, even on easy is far too hard, even if it wasn't this just isn't exciting and there are much roguelikes on steam. Uninstall and forget.
It made by Ai. I Couldn't care less. i got my $4.00 worth of fun out of it. I am really looking forward to seeing how Ai enables people to create games that never could before just from whatever is floating around in their heads because they didn't have time to learn to program, create models, etc. We are this far already. The next few years are going to be really interesting.
Fun addictive game. If you like immense of spellcasting and desctruction this is the game for you. As an AI engineer this is impressive done. Well done!
Absolute chaos. Bullet heaven games are usually chaotic, but this one is super hard to read.
你好像有什么大病,第三章那个破关,一个无敌的BOSS一直追,碰到就秒,BOSS还会冲锋。速度加满了走路拐一点都被他追上。还要被他追着打3个BOSS。关键是,打完两个BOSS以后,这个秒人的BOSS,还有了远程攻击,伤害巨高。你做的破玩意自己玩过么?
Un bon petit jeu style Vampire Survivors, après une dure journée de TAFF ça fais du bien de tout dégommer !! addictif à souhait ! Je recommande
けっこう遊べる 値段も安い
This game is great! Great value for the money and plays well. Building your character with new skills and synergies is a great way to play same maps and try new fun builds for harder difficulties.
Players by region
Where this game's players are, estimated from review languages.