Coin Cascades

How to play

You drop golden coins onto an 8×8 grid. Each coin lands with a satisfying thunk, then sends ripples outward in expanding square rings

ring 0 (the tile itself), ring 1 (the 8 surrounding tiles), and so on out to ring 4.

Scattered across the board are teal gem collectors, each with a few charges. When a ripple reaches a gem, it’s captured and you score points based on which ring hit it:

• Ring 0 (direct hit): 64 points
• Ring 1: 16 points
• Ring 2: 4 points
• Ring 3: 1 point
• Ring 4: 0 (too far)

So landing directly on a gem pays the most, but you can also snipe gems from a distance by landing nearby and letting the ripples reach them.

Combos

Captures chain into combos. If you capture again within a short time window, your combo multiplier rises (each step adds 25% to the captured value), and a banner shows your streak. Higher combos also mean a bigger screen shake, brighter particle bursts, and a rising arpeggio sound. Your best combo is tracked for the final scorecard.

Turns and win condition

You get a fixed number of drops (turns). Each gem has limited charges, so a single gem can be captured multiple times before it goes dark. The game ends when you’ve used all your turns and every ripple has settled. Your final score is saved to a Bolt Database-backed leaderboard.

Key features

• Coin-drop animation — coins fall from above with a shadow and squash, then impact with a flash, dust, and shockwave.
• Ripple system — expanding square rings with eased glow that decay smoothly.
• Combos — chained captures with a multiplier, banner, and escalating audio/visual reward.
• Juice — value-scaled screen shake, spark + rotating star particles, shockwave rings, and impact dust.
• Procedural audio — all sounds (drop whoosh, impact thunk, capture chime, combo arpeggio) are synthesized live with the Web Audio API; no audio files.
• Pixel-art cover — an inline-SVG cover image on the start screen.
• Leaderboard — scores persist to Bolt Database and show the top entries.
• Responsive — the board and HUD scale from mobile to desktop, with a mute toggle