Fatsharkin ja Paradox Interactiven War of the Vikings on nyt saanut myös tuunausmahdollisuuksia, ja pelaajat voivat niiden ansiosta säätää hahmonsa perkkejä sekä ulkonäköä. Tässä vaiheessa saatavilla on joukko perusvaihtoehtoja, mutta näitä saadaan kunhan peli pääsee Early Access -vaiheesta eteenpäin.
With the new in-game customizer, players can start exploring the various options that will be available when War of the Vikings is released. Combatants will have access to all in-game weapon types and a limited selection of character perks, with more weapons and perks to come at release. Visual styles can also be customized, with full access to cloak and armor patterns, shield customization including patterns and colors, and a limited selection of helmets, taunts, and - most importantly - beards. In addition, the new level progression system will allow players to advance up to level 20 (with a higher level cap coming in the release version), and unlock up to four customization and loadout slots.