How do I play TGL Cell Arena?

Move your mouse (or touch) to steer your cell. The cell follows your cursor relative to the center of the screen. Eat the colored dots to grow; eat AI cells smaller than yours; avoid AI cells bigger than yours.

How is the score calculated?

score = floor(max_mass) + floor(time_alive_seconds) + kills × 50. Bigger peak mass, longer survival, and more kills all add up — you're rewarded for sustained dominance, not just one big bite.

Is the leaderboard fair?

Yes. The server runs a sanity-cap validator on every submission: bounded score envelope per kill, seeded food and bot spawn budgets, max-speed bound from path length, and a reproducible score formula. Suspicious runs are flagged for review instead of silently accepted.

Do I need an account?

No. Guests get an auto-generated username on first visit and can rename anytime. No tracking pixels, no analytics SDK, no payments anywhere on the site.

Does Cell Arena work on mobile?

Yes. The game is one self-contained HTML file and runs in any modern browser — phone, tablet, foldable, desktop. Touch + mouse both work.

TGL Cell Arena — Free Browser Cell-Eating Game

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cell arena eat cells growth survival arcade free HTML5 game no install mobile-friendly leaderboard

Genre: Arcade · cell-eating / survival
Platform: Any modern web browser (desktop, tablet, phone, foldable)
Arena: 4 000 × 4 000 logical units
Modes: Single-player vs AI cells, global leaderboard
Controls: Mouse / touch · WASD or arrow keys · Space to split · L/M toggle leaderboard / minimap · Esc to quit
Price: Free

Eat. Grow. Dominate.

TGL Cell Arena is a free, no-install, browser take on the cell-eating arena genre. You start as a small cell at the center of a large arena full of food pellets and AI cells. Steer with your mouse (or touch). Eat anything smaller than you to grow; avoid anything bigger.

What makes a great run

Mass over speed

Bigger cells move slower. The first 30 seconds are about food efficiency; later you balance bait, ambush, and escape.

Read the room

The HUD shows mass + score in real time. AI cells label their mass — pick fights you can win.

Time alive matters

Score = max mass + seconds alive + kills × 50. A patient 3-minute run usually outscores a reckless 30-second blitz.

Replay-validated

Every submission is sanity-checked: seeded food/bot budgets, score envelope per kill, max-speed bound. No client-trusted scores.

Scoring

Score = floor(max_mass) + floor(time_alive_seconds) + kills × 50.
max_mass is your peak mass — losing mass at the end doesn't erase it.
kill = consume an AI cell (you must be just 2% bigger than them).
game over = an AI cell just 2% bigger than you catches you.

Anti-cheat

Cell Arena uses a sanity-cap validator (not bit-perfect replay — float positions and continuous mouse input defeat that). On submit, api/games/cell-arena.php checks:

Score formula reproduces from max_mass, duration_ms, kills (±5% rounding tolerance).
food_eaten ≤ seeded food budget (FOOD_TARGET_COUNT + duration_seconds × 8).
bots_eaten ≤ seeded bot budget (BOT_TARGET_COUNT + duration ÷ BOT_RESPAWN_MS).
max_mass ≤ envelope from food + bots eaten.
distance_units ÷ duration ≤ MAX_SPEED_UPS × 1.10 tolerance.
HMAC-signed run tokens, single-use, tied to a server-issued seed.

Soft-flag thresholds (sustained kill rate > 0.5/sec or food rate > 6.5/sec across a 60s+ run) park the run in validated='pending' for admin review instead of silently accepting.

Controls

Mouse / touch — your cell follows the cursor relative to screen center. Hold the cursor near the center for fine control.
WASD or arrow keys — full-intensity movement (overrides mouse while held). Useful on laptops where the trackpad is finicky.
Space — split: each cell of mass ≥ 35 splits in two, launching a piece in your current movement direction. Up to 8 pieces. Pieces re-merge after 12 seconds.
R — recall / regroup: clears the 12-second cooldown and pulls all your pieces toward the centroid so they merge on contact. Bail out of a bad split fast.
L / M — toggle the in-game leaderboard / minimap overlays.
Esc — quit the current run (counts as a quit, not eaten).

Big cells are slower, but never below 55% of base speed — you stay playable past the early game. Splitting trades safety for reach: launched pieces can ambush a bigger bot you otherwise couldn't catch, but each piece can also be eaten independently. Get them all wiped and the run ends.

Frequently asked questions

How do I play Cell Arena?: Move your mouse to steer your cell. Eat the colored dots and smaller AI cells. Avoid bigger ones.
How do I get bigger?: Each food pellet is +1 mass. Each AI cell you eat adds its full mass to yours. Bigger = slower, so growth always has a tradeoff.
What's the size rule for eating?: You need to be just 2% bigger than another cell to eat them. Same rule applies to AI cells eating you. (Earlier versions used 10% — too punishing.)
Do I need an account?: No. Guests get an auto-generated username on first visit and can rename anytime.
Does Cell Arena work on mobile?: Yes. Touch and mouse both work. The whole game is one self-contained HTML file.

Privacy

No account required. No tracking pixels, no analytics SDK, no third-party scripts, no payment processor. Raw IP, user-agent, and full request bodies are logged for ops/security review (project-wide stance) — never sold or shared.

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