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Harmony Cube level up priority

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By Sefhi | Published: Mar 09, 2026 | Updated: Jun 27, 2026

NIKKE has a lot of Harmony Cubes and it can be confusing for new players which ones they should focus on early on to not brick their resources.

This guide aims to cover the best cubes for PVE content and clarify priority to level them up.

Before we talk about that, a quick TLDR on the cube system:

  • Cubes have stats, main skill and secondary skill (always elemental DMG)
  • Main skills stop upgrading at level 7, secondary at 15
  • You can get Batteries to level up cubes in Solo Raid and Union Raid shop
  • This is a long term progression system, it takes time for everyone

There are only two cubes you have to worry about that will work on 99% of the units in the game: Resilience and Bastion.

NIKKE Resilience harmony cube NIKKE Bastion harmony cube

Resilience Cube Resilience Cube Resilience Cube Description An unidentified cube with all kinds of codes jumbled together. It emits a special wavelenght that enhances a Nikke's performance. Main Stats Slots: 12Reload Speed: 29.69%Damage as strong element: 19.09% provides reload speed, which works on ANY unit in the game. More uptime shooting = more damage.

Bastion Cube Bastion Cube Bastion Cube Description An unidentified cube with all kinds of codes jumbled together. It emits a special wavelenght that enhances a Nikke's performance. Main Stats Slots: 12Ammo Refund: 3Damage as strong element: 19.09% is basically ammo “refund”, which works on most units as long as they don’t have a last bullet mechanic.

I would give priority to these two cubes for new players to at least level 7.

After that, you can take either of them to level 14. No need to go to max level (15) since you still get batteries on Solo Raid regardless.

Thankfully, we have a few cubes nowadays that are pretty good for endgame, mostly Solo and Union Raids.

New players should NOT worry about these until you have both Bastion and Resilience at level 14.

NIKKE Pierce harmony cube NIKKE Destruction harmony cube

Piercing Cube Piercing Cube Piercing Cube Description An unidentified cube with all kinds of codes jumbled together. It emits a special wavelenght that enhances a Nikke's performance. Main Stats Slots: 12Pierce Damage: 14.14%Damage as strong element: 19.09% fills the niche of pierce characters like Red Hood Red Hood Red Hood Tier 2PilgrimIronBurst 3Burst 1Burst 2All BurstsSniper RifleAttacker and a lot more units in the current meta that can take advantage of this.

Destruction Cube Destruction Cube Destruction Cube Description An unidentified cube with all kinds of codes jumbled together. It emits a special wavelenght that enhances a Nikke's performance. Main Stats Slots: 12Damage to parts: 31.9%Damage as strong element: 19.09% can be used on ANY character as long as the boss you are facing has parts, since it increases the damage done to parts.

NIKKE Rupture harmony cube

Rupture Cube fills the niche of true damage characters like Ein Ein Ein Tier 2MissilisElectricBurst 3Sniper RifleAttacker or Chisato Nishikigi Chisato Nishikigi Chisato Nishikigi Tier 2AbnormalIronBurst 3SMGAttacker .

Not as many units can take advantage of this cube, but it’s still worth considering to level up long term.

Any other cube, in 99% of the situations is not really used.

You can slowly get them to level 7 thanks to Solo Raid random drops, but I would not use Union Raid currency on them.

Made by Sefhi sefhi