👆 Black Hole Bank

<p>Black Hole Bank drops you into the rim of a hungry black hole and dares you to build the densest energy empire on the web. It all starts with a single tap on the ring: each press mints a little Energy, and Siphon energy from the accretion disk without falling past the edge.</p><p>Spend what you earn to hire helpers like Little Physicists, Busy Physicists and eventually Cosmic Physicists. They keep working even after you stop tapping, so your Energy ticks up every single second — close the tab and you'll come back to a tidy pile of offline earnings. Stack boosts such as the "ring Festival" to multiply everything, then chase achievements that hand you a permanent edge.</p><p>When growth slows, ascend to bank Event Horizons: each one you hold quietly supercharges all future runs, turning a slow start into an avalanche. It is built to play itself while you watch the counters climb, and it runs instantly in your browser on phone, tablet or desktop — no download, no sign-up. Fire up Black Hole Bank, find your rhythm, and see how big an empire energy can buy.</p>

How to play

• Tap or click the ring (or press Space) to earn your first Energy.
• Open the Buildings tab and buy Little Physicists to start earning Energy automatically.
• Reinvest into stronger helpers like Turbo Physicists and Cosmic Physicists as costs climb.
• Grab Boosts and unlock achievements to multiply how much Energy you make.
• When progress slows, hit Ascend to bank Event Horizons for a permanent boost, then climb faster.

Controls

Tap or click the subject to earn (Space or Enter also taps). Press number keys 1–9 to buy buildings, P to ascend and M to mute. Fully playable with touch on mobile.

Features

• Densest energy theme set in the rim of a hungry black hole
• Five upgradeable helpers from Little Physicists to Cosmic Physicists, each with its own boosts
• Idle income that keeps earning while the tab is closed, with capped offline catch-up
• Prestige system: ascend to bank Event Horizons for a permanent, stacking multiplier
• Achievements, satisfying tap combos, sound effects and an automatic local save

FAQ