What are mutations in Voidling Bound?

Mutations are passive buffs you unlock via the Hatchery research tree. They cost Mutagen to unlock and apply passively to the right Voidlings.

Which mutation should I unlock first?

Power Surge (offensive) and Verdant Heart (support) are the two highest-priority S-tier picks. They apply to every party member and have the largest stat impact.

Can you stack mutations?

Yes. A Voidling can hold up to 4 mutations. The Hatchery research is global — once you unlock a mutation, every eligible Voidling can use a slot for it.

How do you get Mutagen?

Mutagen drops from boss kills, Golden Eggs, and the Mutagen Farm research (8,000 Mutagen, 200 Mutagen per in-game day passive).

16 mutations · Hatchery research

All Mutations in Voidling Bound

Every mutation in the game, ranked by priority. Use this list to plan your Mutagen spending.

Priority	Mutation	Category	Effect	Best With
S	Critical Edge	Damage	+20% crit chance, +30% crit damage.	Void Stalker Infernalisk
S	Mana Tide	Utility	+3% max mana/sec regen, ignores mana-drain.	Voidweaver Arcanist
S	Power Surge	Damage	+15% ATK and SP.ATK to all party members.	Infernalisk Void Stalker
S	Radiant Heart	Elemental	Light Voidlings: +50% damage to Shadow, +25% healing.	Solaris Luminoth
S	Verdant Heart	Survival	Nature Voidlings: +30% healing done, +15% healing received.	Worldroot Thornweaver
A	Blazing Coat	Elemental	Fire Voidlings: +25% burn damage, 10% Fire resistance.	Infernalisk Pyrowyrm
A	Hard Carapace	Survival	Tanks: +25% HP, immune to one-shots under 10% HP.	Abyssalix Coralace
A	Iron Shell	Survival	Tanks: +30% DEF and SP.DEF.	Abyssalix Coralace
A	Photosynthesis	Survival	Nature and Light: 0.5% HP/sec regen in sunlight.	Worldroot Solaris
A	Shadow Cloak	Utility	Shadow Voidlings: 2s stealth on engage.	Void Stalker Umbrahound
A	Static Aura	Elemental	Electric Voidlings: 15 SP.ATK/sec to nearby enemies.	Voltwyrm Sparkrat
A	Swift Feet	Utility	+15% move speed, +10% attack speed.	Voltwyrm Void Stalker
A	Tideborn	Elemental	Water Voidlings: regen 1% HP/sec in water biomes.	Abyssalix Coralace
B	Frost Touch	Elemental	Ice Voidlings: 20% slow on every hit.	Frostfang
B	Iron Thorns	Elemental	Nature Voidlings: reflect 20% melee damage.	Worldroot Thornweaver
B	Siphon Bite	Survival	Tanks: heal 5% of damage dealt.	Abyssalix

Priority Order for Unlocking

Based on cost-vs-impact, this is the order you should research mutations:

Power Surge (5,000) — biggest offensive upgrade, applies to every party member.
Verdant Heart (5,000) — biggest support upgrade, makes Worldroot mandatory.
Iron Shell (4,000) — tanks become unkillable, mandatory for Act III.
Swift Feet (3,000) — cheap, universally useful.
Mana Tide (6,500) — required for the Arcane Architect fight.
Critical Edge (6,000) — biggest single-target DPS upgrade, but expensive.
Radiant Heart (5,500) — required for the Void Stalker Prime fight.
Hatchery Tier 3 (25,000) — unlocks the rest of the tree.

This order gets you through Act I and II with a solid foundation. Hold off on Critical Edge and Radiant Heart until you have the Mutagen to spare.