The free cell eating game — control a whale cell, devour everything smaller, evolve through 5 tiers, and climb to the top of the live arena. No download, no account.
Play Free NowNo download, no install, no account. Click Play and you're in the arena in seconds — on desktop or mobile.
Start as a Minnow. Grow into a Tuna, Dolphin, Orca, and finally a colossal Whale. Each tier unlocks a new look and feel.
Compete against AI bots that hunt, split, flee, and strategize — creating a realistic live-multiplayer feel without a server.
Chain eliminations quickly to trigger COMBO, TRIPLE KILL, and FEEDING FRENZY bonuses. High-risk, high-reward action.
Every few minutes a colossal Megalodon enters the arena. Can you survive — or take it down for a massive score?
Full virtual joystick controls on touch screens. Play on your phone or tablet with the same smooth experience as desktop.
Reefroit is a free eat-and-grow browser game in the io game genre, inspired by classics like agar.io. You start as a tiny cell in a vast 5000×5000 ocean arena filled with food pellets and AI opponents. As you eat and grow, you evolve through five distinct tiers — Minnow, Tuna, Dolphin, Orca, and Whale — each bringing a new visual identity and changing how other players react to you in chat.
Unlike typical io games, Reefroit gives you a second chance: if you're eliminated, you respawn with 40% of your last mass so you can continue your run instead of starting from scratch. Kill multiple opponents in quick succession to trigger COMBO and FEEDING FRENZY bonuses for massive score multipliers. Every few minutes a boss-level Megalodon enters the arena, creating a tense shared event for all players.
Built entirely with vanilla JavaScript and HTML5 Canvas, Reefroit runs client-side with zero server dependency — making it fast, private, and playable offline.
Start Playing FreeYes. Reefroit is 100% free — no purchase, subscription, or account required. Open the page and click Play Now.
No download or install needed. Reefroit runs directly in your browser (Chrome, Firefox, Safari, Edge) on desktop and mobile.
Yes. Reefroit has full mobile support with a virtual joystick for movement and on-screen buttons for splitting and ejecting mass.
Reefroit is inspired by agar.io but adds its own features: a 5-tier evolution system (Minnow → Whale), kill-streak combos, a respawn mechanic so you don't lose everything on first death, boss arena events, and a full ocean/fish theme.
Viruses are permanent arena hazards. If your cell is large enough to overlap a virus, you'll split into smaller pieces. Your split cells will gradually pull back together and re-merge after a few seconds. Strategic players use viruses to set traps for bigger opponents.
As your cell grows in mass, you evolve through 5 tiers: 🐟 Minnow → 🐠 Tuna → 🐬 Dolphin → 🐋 Orca → 🐳 Whale. Each evolution changes your cell's colour and displays a notification to the arena. Reaching Whale tier means you're one of the biggest threats in the game.
Every 4 minutes, a colossal 🦈 Megalodon entity spawns into the arena — significantly larger than any other player. The ticker announces its arrival. Surviving while the boss is active earns you a big strategic advantage, and eliminating it gives a huge score reward.
If you eliminate multiple opponents in quick succession, you trigger escalating combo bonuses: COMBO ×2, TRIPLE KILL, RAMPAGE ×4, and at 5+ kills in a streak — 🔥 FEEDING FRENZY! These combos display on screen and boost your score multiplier.