Netherglass · Field guide
Know your power.
Upcoming rebrand: Netherglass is the new name of the game previously released as Dreadglass. Published 0.23.8 packages still show the former name. The next authorized update will preserve compatible installed progress. The Android package identifier and Google Play listing URL stay the same.
Ball powers, blessings, fusion recipes and permanent training.
Clearer descriptions in the next update. Your shield is called the Breaker throughout. Barrier creates a Force Field. Gift descriptions use clear effects such as Increased Size, Double Damage and Reduced Speed, with useful timings and counts retained. This wording pass changes no upgrade values.
Upcoming gameplay fixes. The catalog below previews the next build: two-ball Split, four-ball Chaos, inherited remaining power time, fractional damage sharing, one-rank Second Voice, cardinal-only Comet’s Wake, and four falling powerups at once. Metal pierces up to three seals without a cooldown, is consumed on boss contact, and deals double base boss damage. Venom infections pulse at three and six seconds. Memory of the Eclipse keeps its size bonus and increases Banish damage only against bosses. Echo marks every eligible seal and the boss once, releasing for Double Base Orb Damage after two seconds without another Echo hit. Crown adds its stronger return. Automatic boss supply pauses while all balls are held. All Vows cap at nine active balls. The Comet’s starting Split has no speed boost. The Old One begins with one permanent Wing; each Wing fires five Coils of Unmaking every six seconds. Frozen bosses resume smoothly after thawing or Shatter. Settings and Pause add Button Layout to swap Release and Banish. Overflowing menus and lists show a distinct right-side scrollbar, including Medium and Large text. These changes are not in the published 0.23.8 packages.
Also planned for the next build. Burn and Venom stack independently, first dealing one base damage per stack after three seconds. Freeze lasts six seconds on seals and bosses, or eight with Frost Arc II. Iron Inferno burns on Metal’s final hit and improves Inferno’s primary impact; Glasswake Pact uses half/full radius by rank. Only fourth-chamber Gifts can offer eligible fusions, weighted 2:1 as a category against ordinary Gifts. Vaults do not count. Bosses offer Greater Blessings, with separate Boss VI Memory and Boss Rush build steps. Edict of Exclusion unlocks after Region V and grants one Campaign ban per rank. Ban a displayed Gift below Reroll, or Cancel; committed bans last only that run.
0.23.8 package update. The Play bundle adds optional Update / Later prompts, background downloads and a saved menu restart. Direct APK updates remain manual. Gameplay and saved progress are unchanged.
What changed in 0.23.6?
- New Chamber Unsealed eye animation and textured Gift introductions.
- Bosses shatter on defeat; tap to continue after their victory title.
- Divinity is gold; Greater Blessings are ice blue.
- Name editing stays on the Main Menu; Reset Journey has red warnings.
Current playtest · 0.23.8. Banish has 38% more base reach (52.44) and damages Metal Seals normally. Anchor grants +50% width. Crown of Returning Glass gains a stronger returning Echo; Iron Inferno improves both Metal and Inferno impacts. The exact limits and cooldowns appear below.
Clearer Gifts. Discharge replaces Unspent Thunder; Energy replaces Fuel. All Divinity recipes combine two Gifts at 1/1; Divinities reach 2/2 before Eldritch fusion. Magnetism, Recall Awakening, Resonance, Planetary and Fission now cap at 1/1. Existing runs retain active powers, earned charges and progress.
Read your rewards. Divinity uses gold crystal borders and Greater Blessings use ice-blue crown borders. Eldritch keeps amethyst eye borders. Reroll Gifts is larger and separated from the choices. Settings → Accessibility and Pause → Text Size offer Small, Medium and Large. Small remains the default.
Coating rules: One offensive coating per ball. Owned starters shuffle each fresh chamber; retries and Continue preserve their order. New pickups take priority. Active coatings keep their remaining time. Support powers can stack.
Choose what stays behind.
Upcoming screen references, captured from the game. Clear Region V and purchase Edict of Exclusion in the Memory Shrine. Each rank grants one Campaign ban per new run, up to three. Reroll stays above Ban. Selecting a Gift commits its ban for this run; Cancel or Back changes nothing. The card is replaced, and the other offers stay available. Boss Rush and permanent Memory rewards are excluded.
Essentials
Resolve
Your lives. An unprotected enemy hit or missed last ball costs 1 Resolve. The run ends at zero.
Ward
Blocks one enemy hit and preserves Untouchable. Does not save a missed ball.
Barrier
A Force Field below the Breaker saves an escaping ball. Store up to 3 Barriers; unbroken Barriers carry between chambers.
Banish
Blasts around every ball and clears enemy attacks. Each wave hits up to 6 seals and 1 boss. Uses all charges, 1 second apart. Recharges one charge every 8 seconds.
Memory
Banked after a run. Spend Memory on permanent Shrine upgrades or Prestige.
Boons and curses
Gravity
Guides rising balls toward nearby seals or the boss for 6 seconds of flight.
Echo
Hits mark each seal and the boss once. After 2 seconds without an Echo hit, all marks strike for Double Base Orb Damage. Repeat hits refresh the timer. Lasts 6 seconds of flight.
Damage
Double base ball damage and ball-effect damage for 6 seconds of flight. Does not strengthen Banish or Wings.
Inferno
The next impact deals Double Damage along one row and column. Boss hits deal Double Base Damage. Burns stack and deal 1 base damage after 3 seconds. Charge lasts 6 seconds of flight.
Venom
Hits add independent Venom stacks for 6 seconds. Each deals 1 base damage every 3 seconds and spreads. Double Venom Damage against bosses. Lasts 6 seconds of flight.
Zap
The next hit jumps to 3 nearby seals and deals bonus boss damage. Charge lasts 6 seconds of flight.
Split
The next Breaker bounce splits one ball into 2, with Increased Speed for 3 seconds. Copies keep their remaining power duration.
Saint's Shard
Gain 1 Ward to block an enemy hit. Missed balls still cost Resolve.
Wing
Gain 1 Wing for 20 seconds, up to 2. Wings catch balls without adding another vulnerable core.
Borrowed Pulse
Restore 1 Resolve.
Energy
Refill all Banish charges. Charges gained during a cast become usable after its last burst.
Stolen Moment
Reduced Speed for the arena and enemy attacks for 6 seconds. Your Breaker moves normally.
Metal
Pierces up to 3 seals without a cooldown, then consumes Metal. Iron and Glass break in one hit. Double Base Boss Damage; boss contact consumes Metal. Lasts up to 6 seconds of flight.
Magnet
Catch balls: 3 on the main Breaker, 1 per Wing. Tap Release to launch them. Lasts 6 seconds of flight; held powers pause. Boss supply pauses while all balls are held.
Freeze
The next hit freezes nearby seals for 6 seconds. Shatter breaks up to 2 connected seals every 2 seconds. Bosses also freeze until expiry or Shatter. Charge lasts 6 seconds of flight.
Stormward
Gain 1 Barrier: a Force Field that saves an escaping ball. Store up to 3; unbroken Barriers carry between chambers.
Withering Hex
CURSE: Halve Breaker Size for 12 seconds. Repeated pickups refresh the duration.
Severing Veil
CURSE: Remove active ball powers and release held balls safely. Queued powers remain.
Hollow Tongue
CURSE: Disable Banish for 8 seconds. Recharge and bursts already cast continue.
Timing and combat rules
Burn and Venom stacks
Each application has its own duration and first tick after 3 seconds. Reapplication adds a stack without refreshing others. Base damage is 1 per tick; damage modifiers and multiball sharing still apply. Venom waves cannot reinfect the same seal.
Nova and Unsealed
Nova damages nearby targets. Netherglass Unsealed triggers a Half-Damage explosion. Damage strengthens both; their cooldowns apply across all balls.
Banish damage
Blasts damage nearby seals, including Iron, and the boss. Damage and Size increase with Banish upgrades. Each wave hits up to 6 seals and 1 boss; every ball clears nearby attacks.
One offensive coating
Each ball carries one coating: Zap, Freeze, Metal, Inferno or Venom. Queued coatings wait for an uncoated Breaker or Wing catch. Support powers can stack. Owned starters shuffle each new chamber; retries and Continue keep their order.
Reward cadence
Choose Gifts after every 2 numbered chambers. Only the fourth chamber offers eligible fusions, with 2:1 category odds. Bosses offer Greater Blessings. Vaults never shift this count. Boss Rush adds a separate build step.
Seal health and reinforcement
Later regions introduce tougher seals and reinforcement layers. Each layer absorbs a separate hit and reflects Metal. Seal health is the same on every difficulty.
Boss resilience
Bosses resist oversized bursts and cannot skip phases from damage overflow. Freeze lasts 6 seconds, or 8 with Frost Arc II, and ends on Shatter; a boss can be frozen again 10 seconds after application. Launched attacks keep moving.
Burst control
Across all balls: Zap, Freeze and Inferno impacts trigger at most once per second; Metal piercing has no cooldown; Shatter breaks up to 2 connected seals every 2 seconds. Splash, Nova, Split and fusions keep their own cooldowns. Blocked charges wait.
Multiball damage
Active balls share ball damage. Small hits accumulate on each target instead of rounding into extra damage. Banish has one shared damage budget per wave; every ball still clears nearby attacks.
Ball power timing
Ball powers use flight time. Waiting for Release, held time and Pause do not spend it. Zap, Freeze and Inferno can be consumed on impact; boss contact consumes Metal; other powers last their remaining duration.
Split inheritance
Each Split turns one ball into 2, or 4 with Chaos Incarnate. Existing balls remain. Copies keep remaining power duration. Extra balls remain until lost. The active ball cap is 9 for every Vow.
Damage and other abilities
Damage doubles base ball damage and ball-effect damage. Contact bonuses add together. Banish and Wings are separate abilities. Each Cultist kill adds 6 seconds of Dread Fury; its damage bonus does not stack.
Fusion timing
Each Divinity and Eldritch effect has its own 6-second cooldown shared across all balls. Lodestone Sanctuary and Crimson Meridian have no cooldown. Echo can mark every eligible seal and the boss once; all release after 2 seconds without another Echo hit. Repeat hits refresh the timer without stacking damage. Crown's cooldown starts on mark application; its return cannot trigger another Echo or Echo fusion.
Powerup supply
Up to 4 uncollected Boons and Curses can fall at once. Queued Breaker powers do not count. Full fields skip seal drops. After 12 seconds without a Boon drop, the boss supplies one when a slot is free. Its timer pauses while every ball is held.
Misses and permanent Wings
Missing the last ball costs 1 Resolve and clears temporary powers. Standard and Challenging keep boss progress; Netherglass restarts the fight. Permanent Wings remain unless captured by a special boss attack.
Relics and blessings
Ashes to Memory · max rank 1
Gain 30 Memory and restore 1 Resolve. Repeatable when no eligible Gifts remain.
Infernal · max rank 1
Queue Inferno at the start of each new chamber.
Venomous · max rank 1
Queue Venom at the start of each new chamber.
Red Baron · max rank 2
Increased Damage Boon Duration per rank. Collecting Damage again refreshes it without stacking its strength.
Discharge · max rank 1
One extra Zap jump. Finish nearby seals, then send remaining chain damage to a nearby boss.
Lightbearer · max rank 2
Start each new chamber with a Wing for 10 seconds per rank. An existing permanent Wing or The Procession grants a second Wing.
Zealot's Lens · max rank 2
Increased Cultist Wing Damage per rank. Wing bolts cannot pierce Iron Seals.
Widow's Thread · max rank 3
Increased Breaker Size per rank.
Leviathan Fang · max rank 2
Increased Ball Damage against seals and bosses per rank.
The Second Voice · max rank 1
Launch 1 additional starting ball.
Hollow Lantern · max rank 3
Reduced Banish Recharge Time per rank.
A Borrowed Heart · max rank 3
Restore 3 Resolve, up to your maximum.
Saint of Glass · max rank 2
Gain 1 Ward per rank at each new chamber. Unspent Wards carry over.
Netherglass Unsealed · max rank 1
Every 8th seal triggers a nearby Half-Damage explosion and 5 normal boss hits. 6-second cooldown.
Ferryman's Coin · max rank 3
Increased Memory from seals per rank.
Tide in a Bottle · max rank 2
Reduced Enemy Projectile Speed per rank.
Black Benediction · max rank 3
Increased Banish Boss Damage and Increased Size per rank.
Pilgrim's Vow · max rank 1
Restore 3 Resolve after each boss.
Comet's Wake · max rank 1
Uncoated balls splash Half Damage to neighboring seals north, south, east and west. Split and Damage are allowed. 0.75-second cooldown.
Blizzard · max rank 2
Increased Freeze Size per rank.
Storm Scrip · max rank 2
Each Barrier withstands 1 extra hit per rank. Applies to existing and future Force Fields.
The Crimson Tithe · max rank 2
Restore 1 Resolve per rank at each new chamber.
Censer of Echoes · max rank 2
Gain 1 maximum Banish charge per rank. Each adds a burst, 1 second apart.
Arc · max rank 1
Queue Zap at the start of each new chamber.
Frost · max rank 1
Queue Freeze at the start of each new chamber.
Iron · max rank 1
Queue Metal at the start of each new chamber.
Magnetism · max rank 1
Queue Magnet at the start of each new chamber.
Planetary · max rank 1
Queue Gravity at the start of each new chamber.
Resonance · max rank 1
Queue Echo at the start of each new chamber.
Fission · max rank 1
Queue Split at the start of each new chamber.
Marrow Chalice · max rank 2
Healing pickups restore 1 extra Resolve per rank.
Pilgrim's Mantle · max rank 2
Gain 1 Ward per rank when entering a new boss fight. Store up to 12 Wards.
Censer Wick · max rank 2
Energy grants 1 Ward per rank, up to 12.
Resonant Lens · max rank 2
Increased Echo Damage per rank.
Gravitation · max rank 2
Increased Gravity Size per rank. Only rising balls are guided.
Rift Cartography · max rank 3
Increased Memory from Memory Seals per rank.
Recall Awakening · max rank 1
Released Magnet balls gain Increased Contact Damage and return to the Breaker after 6 seconds.
Greater Blessings
Pyre Eternal · max rank 1
Increased Inferno Size: the cross reaches neighboring rows and columns.
Plaguebringer · max rank 1
Double Venom Damage. Infection also spreads diagonally. Queue Venom at each new chamber.
Heart of the Abyss · max rank 1
Gain 2 maximum Resolve and restore 2 Resolve.
Overload · max rank 1
Double Zap Damage, including Discharge and bonus boss strikes.
The Black Sun · max rank 1
Double Banish Damage with Reduced Base Size. Size upgrades still apply.
Aegis of Drowned Gods · max rank 1
Gain 1 Barrier now and at each new chamber. Unbroken Force Fields carry over.
Shattering Echo · max rank 1
Shattering ice freezes neighboring seals in every direction. 3-second cooldown.
Adaptive Hardening · max rank 1
Every 6 seconds of flight, gain Metal for 3 seconds when uncoated. Waits for other coatings and queued powers.
Horrific Kingsbane · max rank 1
Curses become blessings: Hex doubles Breaker Size, Mute casts 8 free Banish bursts, and Veil doubles timed ball-power duration for the chamber.
Wings of Light · max rank 1
Wings match the main Breaker's size and powers, with 3 Magnet slots each. Inverted colors; only the main core is vulnerable.
Memory Trove · max rank 1
Triple Memory from seals.
Chaos Incarnate · max rank 1
Split turns one ball into 4, with Increased Speed for 5 seconds. Copies keep remaining power duration.
Impenetrable Scion · max rank 1
Store up to 5 Barriers. Barrier pickups grant 2 Force Fields.
Borrowed Fate · max rank 5
Gain 1 reroll for this run. Available after bosses, up to 5 ranks.
Eventide Engine · max rank 1
Gravity guides rising balls twice as quickly. Ball speed and contact damage stay unchanged.
Crown of Returning Glass · max rank 1
Echo returns with Increased Damage 1 second after its final strike. Shared trigger. Nearby seal first; otherwise the boss. 6-second cooldown.
Crimson Meridian · max rank 1
Damage pickups grant 1 Ward, up to 12. Wards turn red at the cap.
Lodestone Sanctuary · max rank 1
Magnet Release clears enemy attacks with Increased Banish Size. Does not damage seals or bosses.
Twin-Star Covenant · max rank 1
The first catch in each new chamber grants Gravity and Echo to one ball. Split copies inherit both.
Divinity
Fusion unlocks after Campaign regions I–III. Consume exactly two max-ranked inventory Gifts. Inherited benefits apply once. Collect spare Gifts for unfinished recipes. Each fusion has its own six-second cooldown across all balls.
Each Gift uses its own rank cap: Arc, Frost, Iron and Infernal are complete at 1/1; Resonance is complete at 1/1. Frost Arc needs Frost 1/1 + Arc 1/1; Iron Inferno needs Iron 1/1 + Infernal 1/1. Divinities still reach rank 2.
Frost Arc · max rank 2
Zap freezes neighboring seals. Freeze triggers Zap. Freeze lasts 6 seconds, or 8 at rank 2. 6-second cooldown.
Recipe: Frost + Arc (both at maximum rank).
Iron Inferno · max rank 2
Final Metal hit deals impact damage and burns for 3 seconds, or 6 at rank 2. Inferno gains Increased Primary Hit Damage per rank. 6-second cooldown.
Recipe: Iron + Infernal (both at maximum rank).
Glasswake Pact · max rank 2
Magnet Release casts Banish after 3 seconds: Half Size at rank 1, normal Size at rank 2. Includes damage. 6-second cooldown.
Recipe: Magnetism + Recall Awakening (both at maximum rank).
Venomous Resonance · max rank 2
Echo infects its target with Venom. Increased Venom Damage per rank. 6-second cooldown.
Recipe: Venomous + Resonance (both at maximum rank).
Ember Echoes · max rank 2
Inferno burns end with 1 Echo per rank. 6-second cooldown.
Recipe: Infernal + Resonance (both at maximum rank).
Eldritch
Fusion unlocks after Campaign regions I–III. Consume exactly two max-ranked inventory Gifts. Inherited benefits apply once. Collect spare Gifts for unfinished recipes. Each fusion has its own six-second cooldown across all balls.
Winter Solstice · max rank 1
Frost Arc ends with Echo, and frozen seals burn. 6-second cooldown.
Recipe: Frost Arc + Ember Echoes (both at maximum rank).
Phantom Flamewake · max rank 1
Inferno burns end with a Banish with Reduced Size. 6-second cooldown.
Recipe: Iron Inferno + Glasswake Pact (both at maximum rank).
Venom of the Deep · max rank 1
Echo adds Venom and a 9-second Burn. Both stack and deal Triple Damage against bosses. 6-second cooldown.
Recipe: Venomous Resonance + Ember Echoes (both at maximum rank).
Memory Shrine
Campaign training. The Unblinking Crown unlocks advanced blessings and expanded rank caps after all first-three region bosses are defeated. Extra Rerolls is available immediately: three ranks cost 750 / 1,500 / 3,000 Memory. Choose a learned Memory after defeating Calamity of Reality; only that chosen Memory becomes available for training. These discoveries persist through Prestige; purchased ranks reset. Extra Rerolls and Blessing of the Timelord also apply in Boss Rush. Timelord requires a full Campaign clear through The First Fracture: rank 1 after Standard, rank 2 after Challenging, and rank 3 after Netherglass; ranks cost 1,000 / 2,000 / 3,000 Memory.
Edict of Exclusion · max rank 3
Unlock after Region V. Gain 1 ban per rank each Campaign run. Select an offered Gift to exclude it for that run. Boss Rush is unchanged.
A Deeper Vessel · max rank 6
Gain 1 maximum Resolve per rank.
The Steady Hand · max rank 8
Increased Starting Breaker Size per rank.
An Undying Wick · max rank 6
Reduced Banish Recharge Time and Increased Size per rank.
The Ferryman's Due · max rank 6
Increased Memory Gained per rank.
Teeth of the Deep · max rank 3
Increased Starting Ball Damage per rank.
The Saint Remembers · max rank 4
Start each run with 1 extra Ward per rank.
A Patient Ferryman · max rank 3
Reduced Boon Fall Speed per rank. Curses fall normally.
Unspoken Absolution · max rank 3
Reduced Hex and Mute Duration per rank. Does not affect Severing Veil.
Godslayer · max rank 10
Increased Boss Contact Damage per rank for every Breaker.
A Manywick Lantern · max rank 2
Gain 1 maximum Banish charge per rank. Each adds another burst.
Angelic Guardians · max rank 3
Start with 1 Wing: 10 seconds at rank 1, 20 seconds at rank 2, permanent at rank 3. Certain attacks can remove it.
Memory of Thunder · max rank 5
Zap gains 1 extra jump per rank.
Memory of Stillness · max rank 5
Increased Freeze Size per rank.
Memory of Ruin · max rank 5
Increased Metal Boss Damage and Increased Collected Metal Duration per rank.
Memory of Sanctuary · max rank 3
Start each run with 1 Barrier per rank.
Memory of the Eclipse · max rank 5
Increased Banish Damage against bosses and Increased Size per rank.
Extra Rerolls · max rank 3
1 reroll per rank
Blessing of the Timelord · max rank 3
Complete each difficulty's Campaign for 1 extra Reroll each.
Starting Vows
Choose one Vow. Cosmetic Vessel Forms remain separate. The Old One replaces Cultist after its secret unlock and is available in both modes. Other Campaign Shrine combat bonuses do not carry into Boss Rush.
The Anchor
Increased Breaker Size.
The Ember
Gain 1 maximum Banish charge.
The Bastion
Start each run with 2 Wards.
The Conduit
Zap gains 1 extra chain.
The Procession
Start each new chamber with 1 Wing for 20 seconds.
The Comet
Start each chamber with a 2-ball Split bounce. No speed bonus.
The Horizon
Increased Banish Size. Start each run with 1 Ward.
The Paradox
Every 4 catches, Nova strikes up to 3 seals and the boss. 6-second cooldown; charged catches wait.
The Sovereign
Every 3 catches, a stronger Nova strikes up to 5 seals and the boss. 6-second cooldown; charged catches wait.
The Cultist
Wings fire automatically at the nearest seal, or the boss when no seals remain.
The Old One
Start with 1 permanent Wing. Each Wing fires 5 Coils of Unmaking every 6 seconds.
Secret unlock: defeat Zae’zynthi, the Eternal Nightmare.
Prestige passives
Every Prestige grants one passive rank in every upgrade below, up to rank 10. No individual allocation is required.
Memory Gained · max rank 10
Increased Memory Gained per rank.
Deathless Vessel · max rank 10
Gain 1 maximum Resolve per rank.
Sovereign Reach · max rank 10
Increased Breaker Size per rank.
Everbright Lantern · max rank 10
Reduced Banish Recharge Time per rank.
Worldbreaker · max rank 10
Increased Boss Contact Damage per rank.
Secret encounter power (spoiler)
Dread Fury
Secret fight only: Increased Ball Contact Damage. Each Cultist kill adds 6 seconds of flight. Duration stacks; damage does not. Held time pauses it.
Report an effect that behaves differently · Back to Netherglass