Prism Plunge: Stack Ball Game
Hold click, touch or Space. Release to wait. Supports portrait and landscape; requires WebGL
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About this game
Descend 60 fixed-layout towers across six difficulty chapters. Read offset lanes, split hazards, counter-rotating bands, speed pulses and reversals, then time a short fever burst.
How to play
Hold the playfield, Plunge button or Space to break colored rings; release to wait safely. Dark segments marked × end the attempt unless fever is active. Seven ordinary breaks without releasing start 0.95 seconds of fever; fever breaks never recharge it. Ordinary rings score 10 points, fever rings 25, and clearing a tower adds 50. Clear each tower to unlock the next. The six chapters introduce offset lanes, split dark arcs, spirals, opposite rotations, speed pulses and reversals. Pause with P, Escape or Pause; Restart retries the same layout. Towers opens the chapter map. Unlocks, selected tower, best scores and sound settings save in this browser. Older unlocks carry over; scores from the former 12-tower edition are archived separately. Unfinished attempts restart after reloading.
Prism Plunge at a glance
- Genre
- Arcade
- Price
- Free to play, no download or account needed
- Devices
- Desktop, phone and tablet browsers
- Controls
- Hold click, touch or Space. Release to wait. Supports portrait and landscape; requires WebGL
Read the next band before holding
The tower is built from bands with clear colored and dark regions. Early chapters offer broad lanes and gentle offsets. Later chapters split the dark regions, twist the lanes, turn neighboring bands in opposite directions, vary the speed or reverse smoothly. Watch the layer beneath the current one as well as the ball. Releasing is always safe.
Use fever as a short opportunity
Seven ordinary breaks in one uninterrupted hold start 0.95 seconds of fever. During fever the orange ball breaks both colored and dark segments and earns 25 points per ring instead of 10. Fever breaks do not build a new charge. The warning before returning to normal play reminds you to check the next dark segment. A completed tower adds 50 points.
Six chapters, sixty distinct layouts
Lagoon teaches the timing with broad safe lanes. Coral adds offsets and split arcs. Cobalt emphasizes opposing bands. Amber introduces speed pulses. Violet adds smooth reversals. Midnight combines the patterns. Each chapter has ten named towers with increasing hazard coverage and tower length; circular, square, hexagonal and petal-shaped towers vary the silhouette. Every layout is generated from a fixed seed, so retries remain consistent.
Continue and replay on this device
The chapter map shows unlocked towers and their best scores. Clear a tower to unlock the next. Completed progress, the selected tower and sound preferences save in this browser. Unlocks from the former 12-tower edition carry over, while its old scores are archived and do not count as scores for the new layouts. There is no cloud sync.
Questions about Prism Plunge
Are these the original Stack Fall levels?
No. Prism Plunge uses an original, deterministic 60-tower campaign based on the same hold-and-release gameplay. The original game’s exact level data was not available from its public description. Each chapter introduces a distinct timing challenge.
Does restarting generate an easier tower?
No. The same tower always uses the same layout, starting orientation and rotation rules, so you can learn its rhythm. Different numbered towers have different layouts.
Why did fever stop without charging another one?
Only ordinary breaks charge fever. Breaks during fever cannot recharge it; you need a fresh seven-break streak after it ends.