The Black Hole is the second prestige layer in Galaxy Idle Clicker. Unlocking and using it is key to long-term progression, as it lets you reset runs for Black Matter, powerful upgrades, and permanent boosts.

How Black Hole Travel Works

Black Hole Travel is a prestige reset that requires a set number of Light Years. Each reset gives you Black Matter, which can be spent on upgrades. The more Black Hole Travels you perform, the more upgrades you unlock.

You can refund one Black Matter upgrade per run, but only before killing 1000 enemies. Plan refunds at the start of each run if needed. Some upgrade costs are lowered after reaching Supernova Collapse (Tier 3 Prestige).

Light Years Required for Black Hole Travel

Here are the requirements for the first 20 Black Hole Travels:

1: 2,750 Light Years
2: 4,875
3: 7,378
4: 15,728
5: 51,406
6: 150,572
7: 420,000
8: 1,000,000
9: 2,847,407
10: 9,059,116
11: 37,929,552
12: 175,618,168
13: 840,337,722
14: 1,995,514,138
15: 3,554,942,746
16: 27,129,140,527
17: 81,238,251,638
18: 243,349,362,749
19: 1,460,096,176,494
20: 4,380,288,529,482

(The requirements scale much higher, reaching into the trillions and beyond.)

Black Hole Upgrades

Upgrades are purchased with Black Matter and unlock as you perform more Black Hole Travels. They are split into three groups.

Resource QoL Upgrades

Free Junk – Keep Junk when upgrading, unlocks at Black Hole 1
Free Plasma – Keep Plasma when upgrading, unlocks at Black Hole 2
Free Citizens – Keep Citizens when upgrading, unlocks at Black Hole 3
Free Garbage – Keep Garbage when upgrading, unlocks at Black Hole 8
Free Energy – Keep Energy when upgrading, unlocks at Black Hole 10
Free Scrap – Unlocks after Supernova Collapse #4, lets you keep and auto-buy Scrap upgrades
Free Minigames – Unlocks at Black Hole 25 (20 after SN #6), all minigame upgrades are free
Free Army – Unlocks at Black Hole 40 in SN #6, armies no longer consumed when upgrading

General QoL Upgrades

Keep Prisoners when Traveling Back – Unlocks at Black Hole 2
Faster Citizen Generation – Unlocks at Black Hole 2
Keep Levels when Traveling Back – Unlocks at Black Hole 3
Area Skip – Chance to skip early areas, unlocks later
Quad Prisoners – Unlocks at Black Hole 4
Free Prisoners – Unlocks at Black Hole 4
9 Free Time Skips – Unlocks at Black Hole 5
Hyper Garbage – Unlocks at Black Hole 5, greatly speeds up Garbage production
Auto Mine Damage – Unlocks at Black Hole 9
Decrease Enemy Shields – Unlocks at Black Hole 10
Safe Mode – Unlocks at Black Hole 11
Electric Laser Shots – Unlocks at Black Hole 13
Better Rarities – Unlocks at Black Hole 8 with Supernova Collapse #1
Better Skip Play – Unlocks at Black Hole 35 in SN #6
Extra Armies – Unlocks at Black Hole 18
Other hidden upgrades – Require Nightmare and Hell difficulty in Supernova Collapse

Multipliers

Double Damage and HP – Unlocks at Black Hole 5
Double Junk/Plasma/Exp – Unlocks at Black Hole 6
Double Prisoners/Citizens/Garbage – Unlocks at Black Hole 9
Double Meteorite/Minerals/Radiation – Unlocks at Black Hole 10
Double Black Hole Passives – Unlocks at Black Hole 10 with SN #3
Double Cosmic Dust – Unlocks after SN #4 Hell difficulty
Double Quark Upgrades – Unlocks at Black Hole 20 with SN #5
Double Mech Multipliers – Unlocks at Black Hole 28 in SN #6

Tips for Black Hole Progression

Push Light Years as far as possible before each Black Hole Travel to maximize Black Matter gains.
Always plan refunds at the start of a run before fighting 1000 enemies.
Prioritize Free Junk, Free Plasma, and Free Citizens first to keep core resources scaling.
Hyper Garbage is one of the strongest QoL upgrades early on.
Multipliers quickly snowball progression, so unlock them as soon as they’re available.
Supernova Collapse reduces the cost of some Black Hole upgrades, making them easier later.

Final Blurb

The Black Hole system in Galaxy Idle Clicker is the core of Tier 2 Prestige. By performing Black Hole Travels, collecting Black Matter, and unlocking upgrades, you’ll keep scaling resources and multipliers for faster runs. Smart upgrade choices make the difference between slow resets and galaxy-breaking progression.