number-merge-2048-v2

Neon Sum

Neon Sum is an original mobile-first number merge puzzle inspired by the viral swipe-and-merge loop of 2048. Swipe the 4×4 board to slide glowing numbered tiles; matching values fuse into larger powers, a new tile appears, and the daily deterministic seed gives everyone the same replayable challenge.

Features:

• 4×4 swipe merging with stable tile identities and smooth travel/merge feedback.
• Score, best score, move counter, undo, daily seed restart, 2048 win state, continue-after-win, and no-moves loss state.
• Offline-safe synced-store persistence for the current run: seed, RNG position, board, tiles, score, undo snapshot, terminal state, and semantic effect IDs.
• Pure TypeScript game logic for shifts, merges, seeded spawns, no-moves detection, undo, deterministic replay, win/loss, and idempotent action handling.
• Mobile Poe iframe layout with safe-area padding, a dominant play surface, touch/keyboard swipes, non-selectable game text, and reduced-motion support.

No copyrighted names, characters, artwork, or audio are used; the visual direction is an original neon candy-glass puzzle board.