About the game 🇬🇧 🇫🇷 🇮🇹 🇪🇸

2Fever is a free number merge puzzle game playable on mobile and desktop. Merge identical tiles to create larger numbers before they turn into useless rusted cells.

How to play

Tap tiles to select them, then tap an adjacent tile of the same value to merge. Each merge earns points. The Timer Decay counts down over time — merge fast to earn time back. Avoid rusted cells (🦀): too much rust means game over!

Game modes

Choose between a 4×4 grid (fast and intense), 5×5 (balanced), or 6×6 (strategic, long sessions). Each mode has its own rust limits and time thresholds.

Features

Local score history · Speed multiplier · Free shuffle · Score sharing · Mobile & desktop friendly.

🌍 Create a free account to save your best score on the world leaderboard and earn coins!

🪙 Earn coins each game based on your score - use them to remove rust during a game!