CODEX MORTIS CD Key
PC price comparison · GROLAF · Sep 24, 2026
A survivors-like deckbuilder with mutating spells and ten schools of dark magic. Build devastating combos, battle through fourteen cursed levels, and spend earned points on booster packs. Survive the isometric bullet hell solo, in local co-op, or online with up to four players.
Lowest final price
at Steam · Standard Official
Historical low: $2.79 on September 24, 2026
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CODEX MORTIS price history
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Historical lows by store
- Steam$2.79
CODEX MORTIS player count
- Playing now
- 44
- 24-hour peak
- 44
- 30-day peak
- 44
Concurrent players on Steam, hourly peak over the last 7 days. Source: Steam Web API.
About CODEX MORTIS
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, with a friend in a local co-op, or online in a party of up to four. 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. BUILD YOUR DECK, OPEN YOUR PACKS 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. TWIST YOUR SPELLS WITH MUTATIONS 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. TEN SCHOOLS OF DARK MAGIC Every spell in your collection belongs to one of the ten schools of dark magic. There are 200 spells in all, and every school combines with every other. 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. Harvest: cull the horde with the scythe. Death Knight: close-quarters swordplay, spectral armor and war cries. Spiritism: forbidden rites, spirit turrets and sacrificial urns. Desolation: sand shades and zones that punish the living. Apothecary: dark alchemy, elixirs and blight. 31 PLAYABLE HEROES Many heroes are built around two or three schools at once. Ravena Bloodscythe pairs Blood Magic with Harvest, and Seraphon Wraithblade blends Harvest, Death Knight and Soul Magic. FOURTEEN LEVELS, 3 GAME MODES Find perfect builds for fourteen levels: Forgotten…Read more
CODEX MORTIS system requirements
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
CODEX MORTIS key FAQ
+What is a CODEX MORTIS CD key?
A CODEX MORTIS CD key is a digital code that unlocks the game on a PC platform such as Steam. After redeeming it, you download the game directly from that platform and it stays in your library.
+What is the cheapest price for CODEX MORTIS?
The cheapest CODEX MORTIS key right now costs $2.79 at Steam, 30% off the regular price. We compare 1 offers from 1 store, and the price already includes payment and service fees.
+What is the historical low for CODEX MORTIS?
The lowest price we have recorded for CODEX MORTIS is $2.79 on September 24, 2026. Check the price history chart to decide whether to buy now or wait for the next sale.
+How many people play CODEX MORTIS?
Right now 44 people are playing CODEX MORTIS on Steam, with a peak of 44 in the last 24 hours. Player counts are updated every 15 minutes.
+Is it safe to buy a CODEX MORTIS key?
Buying from an official store such as Steam, GOG or Epic Games is always safe. Key resellers are often cheaper but sell keys second-hand, so check the region lock and buyer protection before you buy. Every offer on GameKeyDeal is labelled as official or reseller.
