Prism Snake

A neon snake game where every orb is a different color with its own power-up, and your snake grows into a glowing prism trail of everything it has eaten.

Date: 2026-06-12 Genre: snake variant Status: Playable build

Concept

Prism Snake takes the classic grow-and-avoid-yourself snake formula and turns the food into a five-color power-up system. Instead of one kind of pellet, the board spawns weighted color orbs that each change the snake differently — and every orb you eat repaints the head, so your body becomes a streaming rainbow record of your run. It is a fast, glowing arcade snake built for "one more go," readable in a single screen with no instructions needed.

How to play

Steer the snake around a 20×20 grid to eat the single glowing orb on the board; each orb scores points (multiplied by your level) and applies its color's effect, then a new orb spawns. The walls wrap around (the snake passes through an edge and reappears on the opposite side), so the only way to lose is to run into your own body. Steer with Arrow keys / WASD, swipe on the canvas, or the on-screen D-pad on touch devices; press R (or the Play Again button) to restart after a game over. Score, level, and your local best are shown above the board.

Core mechanics

• Five weighted color orbs, each with its own effect and score: Green – Grow (+10, most common), Red – Speed (+15, half-interval burst), Blue – Shrink (+20, trims up to 3 segments to escape a tight spot), Gold – Bonus (+30, big points, rarer), Purple – Flip (+25, inverts your controls, rarest).
• Prism trail — eating an orb recolors the head to that orb's color, and each segment keeps the color it was grown from, so the snake body reads as a history of the run.
• Wrap-around board — no wall death; the challenge is purely managing your own growing length.
• Self-collision is the only fail state — the run ends the instant the head enters a body cell.
• Juice — pulsing orb halos, a particle burst on each pickup, head "eyes" that point in the travel direction, and FAST / FLIP status badges while a timed effect is active.

Progression & scoring

Score is orb points × current level, so later pickups are worth far more. Level rises every 150 points, and each level shortens the tick interval (from 160 ms down to a floor of 70 ms), so the snake speeds up as you climb — the difficulty curve comes from raw speed plus your own lengthening body. The Speed orb temporarily halves the tick interval for a short burst, and the best score persists in localStorage across sessions.

Look & feel

Dark synthwave arcade: a near-black #0a0a12 field with faint grid lines, monospace HUD, and saturated neon orb colors (green/red/blue/gold/purple) that glow via canvas shadow blur and radial halos. The title and effects lean on a rainbow gradient to sell the "prism" identity. All art is drawn procedurally on a single <canvas> — no external images — and the layout collapses cleanly to a phone with an on-screen D-pad.

What makes it fun

• Color-as-mechanic — five distinct power-ups turn each orb into a quick risk/reward read (grab the risky purple flip for points, or play it safe with green) instead of mindless pellet-chasing.
• The prism trail — your snake visibly tells the story of your run, which makes a long snake feel earned and pretty rather than just a hazard.
• Shrink as an escape valve — the blue orb adds a rare "get out of jail" option that classic snake never has, rewarding players who plan their pickups under pressure.
• Instant, screen-readable arcade loop — no menus, no load, no rules screen; the color legend on the start overlay is all the onboarding it needs.