Character classes in Code Vein are referred to as Blood Codes but these are far from traditional classes you normally see in AAA RPGs. How Code Vein does it is by letting you, the players, level up more than one Blood Code and the ability to switch them situationally. This, in turn, gives you more freedom and build diversity to tackle difficult areas and boss battles.

Code Vein Blood Codes

Different Blood Codes alter your stats, gifts, ability to carry certain weapons, and Blood Veils slightly. At the start of the game, three Blood Codes are unlocked by default which are Caster, Fighter, and Ranger. The remaining ones must be unlocked as you progress through the game.

Blood Code Locations

The following is a rundown of all the Blood Codes in Code Vein, their locations, and a brief description of each.

Fighter
Unlock by default. It has END for melee combat and improves abilities based on STR and DEX.

Ranger
Unlock by default. The Ranger Blood Code is all about a supportive playstyle using a variety of magical spells.

Caster
Unlock by default. As the name implies, this Blood Code is all about utilizing powerful attacks from far away.

Berserker
You need to beat Oliver Collins during the story to unlock this Blood Code. It’s a high STR and END Blood Code.

Prometheus
After you get to the Home Base, speak to Louis there to unlock the Prometheus Blood Code. It’s a balanced Blood Code that focuses on evading attacks and parrying attacks.

Warrior
You’ll find this Blood Code in the Crypt Spire, above a ladder near a locked gate.

Hunter
You’ll find this Blood Code at Area E-13, Ruined City Center. This Blood Code primarily focuses on ranged attacks.

Artemis
You need to speak to Mia Karnstein at the Home Base to unlock this Blood Code. It features high STA and damaging gifts but suffers from low END.

Assassin
You need to head over to the Howling Pits to unlock the Assassin Blood Code. As the name implies, this Blood Code provides excellent assassination potential and melee prowess.

Atlas
You need to talk to Yakumo at the Home Base to unlock this Blood Code. Try to do so after progressing a little through the story. You can use Heavy Armor with this Blood Code and go into the heart of the battle.

Queen’s Breath
You need to defeat the Successor of the Ribcage at the Cathedral of the Sacred Blood to unlock this Blood Code.

Dark Seeker
While you’re in Dried Up Trenches, you’ll come across a hunter in the area – after the boss battle. This is when you’ll unlock the Dark Seeker Blood Code.

Dark Knight
You need to defeat the boss in the Ashen Cavern to unlock the Dark Knight Blood Code. It features high END, STR, and is excellent when coupled with a Halberd.

Queen’s Claw
To unlock the Queen’s Claw, you need to defeat the Successor of the Claw in the City of the Falling Flame.

Eos
After you’re done with the Cathedral of Blood, you need to head over to Lo and speak with her to acquire the Eos Blood Code. You’ll receive a lot of Ichor and high END with this Blood Code.

Harmonia
To unlock Harmonia Blood Code, you need to defeat the Successor of the Throat. It provides plenty of Ichor coupled with some of the best Dark Gifts in the game.

Heimdal
You’ll unlock this Blood Code after you get Jack at the Home Base. With this Blood Code, you’ll gain incredible melee prowess but at the cost of very little weight limit.

Hephaestus
After you gain access to the Crypt, you need to return to the Home Base and speak with Rin Murasame to unlock this Blood Code. It features high DEX, allowing you to wield a range of DEX-dependent weapons in Code Vein.

Hermes
You need to talk to Davis at the Home Base to unlock this Blood Code. Try to speak to him after progressing a little through the story. Another Blood Code that offers excellent melee prowess and some of the best Gifts in Code Vein.

Ishtar
Unlocking Ishtar in Code Vein requires you to complete the Queen Revenants Reborn boss fight. This Blood Code offers best of both the offense and defense.

Isis
After you’ve acquired the Vestige memory, you need to return to the Cathedral of Blood to unlock this Blood Code. Isis Blood Code is all about ranged-combat prowess.

Mercury
You need to speak with Coco after defeating two bosses during the story to unlock the Mercury Blood Code. Gifts that come with this Blood Code are all about high STA and Haze, allowing you to venture deep into the game’s world.

Queenslayer
You’ll unlock this automatically by simply progressing through the story. This Blood Code specializes in high HP and END.

Hades
Complete the game to gain access to the Hades Blood Code. If you want a Blood Code that hits hard and often, then this is the one you should be looking at, thanks to its high DEX and STR.

Survivor
You’ll find this Blood Code in the Ashen Cavern region of the game. You’ll receive high DEX with this Blood Code.

This marks the end of our Code Vein Blood Codes Guide. If you’re interested in learning more about the game, then check out our Bosses Guide, Haze Farming Guide, and Upgrades Guide.