Cover art for Grannygeddon

Action · New game

Grannygeddon

A pixel-art action game about grannies holding bingo night, a broken-down bus in Benidorm, a snowy mountain and the Moon against waves of zombies.

#21 this weekAI-assisted: Code, Graphics

  • By Achiote Games
  • Action
  • New Oct 24, 2026
  • 1,337-word guide
  • Free

The game runs in this tab. No install, no account.

The short answer

Grannygeddon is a free browser action game for one to four players, set on the strangest Thursday night a retirement home has ever seen. Zombies interrupt a bingo jackpot worth 300 euros and a basket of cold cuts, and the fight runs through four scenarios, a shelf of improvised weapons and a pharmacy that sells upgrades between waves. Grab a slipper and hold the ball cage.

What is Grannygeddon?

It is Thursday, bingo night at the Los Rosales retirement home, and the jackpot has climbed to 300 euros plus a basket of cold cuts. That is precisely when the zombies turn up, and they have not come to fill a card. Grannygeddon is a pixel-art action game about keeping that night alive with whatever an abuela has within reach: a slipper, knitting needles, bingo balls, grandpa's shotgun, hairspray and a lighter, a pressure cooker, and a set of dentures that comes back like a boomerang.

The defence travels. It starts at the bingo hall, moves to a bus breakdown near Benidorm, climbs to a mountain of chocolate and churros, and ends with the pensioners' trip reaching the Moon. One player can hold the line alone, but the design points at online groups of up to four grannies, each on her own computer. It is a free HTML5 game from Achiote Games that runs in the browser and arrived on 24 October 2026.

How to play

Each of the four levels builds its own kind of trouble, and the job is to defend something specific in each one. In the bingo hall it is the ball cage. On the Benidorm excursion the traffic does not stop for anyone and a zombie seagull has designs on the tortilla. In the snow, zombies ride up on the chairlift while the Yeti lobs snowballs. On the Moon, gravity is low, jumps are huge, and a giant Fumigator is in the way.

Between waves the rhythm changes. Medicines can be picked up in the field, and Doña Pepa's pharmacy sells weapons and upgrades. Barricades can be raised in the street to slow the push, and a fallen companion can be revived rather than left behind. Bosses carry a weak spot, so the fight is as much about finding the right target as about firing.

Playing with others works through a room system rather than a public lobby list: one player creates a room and shares a five-letter code, and everyone else joins with it. Each player can run the game in her own language, choosing between English, Spanish and French, so a mixed group does not need to agree on one setting before starting.

Controls

Movement is on WASD, throwing is on J, and jumping is available on either K or Space. Weapons are switched with the number keys 1 through 7, with L, or with the mouse wheel, which matters because the arsenal is broad enough that cycling through it quickly becomes part of surviving a wave.

Holding S builds or repairs barricades, and pressing S together with K drops down a floor, a combination worth learning early since levels stack vertically. M mutes the game and Esc pauses it. There is no aiming or reload key to memorise beyond that set, so the learning curve sits in weapon choice and barricade placement rather than in finger gymnastics.

Controls listed on the game page
InputAction
WASDMove
JThrow
K or SpaceJump
1-7, L or mouse wheelSwitch weapon
S (hold)Build or repair barricades
S + KDrop down a floor
MMute
EscPause

Tips for your first run

Start solo or with one friend before filling a room. A single granny sees the wave patterns clearly, and the four levels each teach something different about spacing: the bingo hall punishes leaving the ball cage open, Benidorm punishes standing in the road, the snow punishes ignoring the chairlift, and the Moon rewards using the low gravity to reposition rather than to show off.

Treat barricades as a resource rather than decoration. Holding S to repair them mid-wave is faster than rebuilding after they break, and the street layouts give room to layer them. Bosses are the other thing to plan for: every one has a weak point, and hitting armour instead wastes the window.

  • Learn the weapon switch early; seven slots and a mouse wheel are faster than panic.
  • Find each boss's weak spot before emptying a full magazine into it.
  • Spend between waves at Doña Pepa's pharmacy rather than hoarding.
  • Revive downed companions; a four-granny room is only as strong as its weakest link.
  • Repair barricades with S held down while the wave is still moving.
  • On the Moon, use the low gravity for distance, not for height.

Content and replayability

Four levels are on offer, and each one changes the enemy pressure rather than just the wallpaper. Bingo night is the straight classic. The excursion adds traffic and a zombie seagull guarding the tortilla. The snow adds chairlift arrivals and a Yeti throwing snowballs. The Moon flips the movement rules with low gravity and puts a giant Fumigator at the end of the trip.

The weapon list is deliberately daft and deliberately varied: slipper, knitting needles, bingo balls, grandpa's shotgun, hairspray with a lighter, pressure cooker and boomerang dentures. Because bosses hide weak spots, repeated runs have something to solve rather than something to grind. Online rooms of up to four, a five-letter code for inviting friends, and per-player language choice make it easy to reassemble the same group. Solo play is fully supported for anyone who would rather not coordinate a squad.

Presentation and performance

The look is 2D pixel art, and the tone is comedy rather than dread: a retirement home, a basket of cold cuts, a tortilla under threat from a seagull, and a Yeti with a snowball supply. The art direction carries the premise, which is why the four scenarios read as jokes rather than as a level list.

It runs as an HTML5 game in the browser, so there is nothing to install before the first wave. A mute key and a pause key are mapped directly, which helps in shared rooms and open-plan spaces. The game also sends anonymous gameplay statistics, with no personal data attached, so difficulty can be balanced, and the main menu offers a switch to turn that off if you would rather not share them.

Who should play it

This suits players who want an arcade action game with a joke in its teeth and a friend or three alongside. The premise rewards anyone who has watched a grandparent take a bingo night very seriously, and the four-scenario structure keeps a session moving between wildly different settings instead of grinding one arena.

It is also a reasonable fit for groups who cannot agree on a single language, since English, Spanish and French can be set per player, and for players who prefer a browser tab to a download. Solo players get the same levels and the same arsenal without needing a room code. Anyone looking for a grim survival game should look elsewhere; the tone here is a slipper thrown at a zombie.

Screenshots

Grannygeddon — screenshot 1
Grannygeddon — screenshot 1
Grannygeddon — screenshot 2
Grannygeddon — screenshot 2
Grannygeddon — screenshot 3
Grannygeddon — screenshot 3
Grannygeddon — screenshot 4
Grannygeddon — screenshot 4

How we tested it

The build was loaded from games.debutplay.com in a headless Chromium session on ; the canvas started and no request was blocked. The guide was last checked on .

From the developer

🇪🇸 ESPAÑOL Es jueves, noche de bingo en la residencia Los Rosales. El bote nunca había estado tan alto: 300 euros y una cesta de embutidos. Entonces llegaron ellos. Y no venían a cantar línea. Grannygeddon es un juego de acción en pixel art: defiende el bingo (y la merienda, el chocolate y la nave espacial) de oleadas de zombis con lo que una abuela tiene a mano. Juega sola o con hasta 4 abuelas online, cada una desde su ordenador. 🎱 4 NIVELES, CADA UNO CON SU LÍO • Noche de bingo: el clásico. Que no toquen el bombo. • La excursión: avería en Benidorm. Los coches no frenan por nadie y una gaviota zombi viene a por la tortilla. • La nieve: chocolate con churros en la sierra. Los zombis suben en telesilla y el Yeti tira bolas de nieve. • La Luna: el IMSERSO llega a la Luna. Poca gravedad, mucho salto y un Fumigador gigante. 🩴 EL ARSENAL DE LA ABUELA Zapatilla, agujas de punto, bolas de bingo, la escopeta del abuelo, laca con…

Frequently asked questions

Is Grannygeddon free?

Yes. It costs nothing to play, and no purchase is needed to start a run in the browser.

Can it be played alone?

Yes. Singleplayer is supported, so the four levels and the full arsenal are available without a squad.

How many players can join and how?

Up to four grannies can play online together, each from her own computer. One player creates a room and shares the five-letter code.

What levels are included?

There are four: bingo night at the retirement home, a bus breakdown near Benidorm, a snowy mountain with chocolate and churros, and a trip to the Moon.

Which weapons are there?

A slipper, knitting needles, bingo balls, grandpa's shotgun, hairspray with a lighter, a pressure cooker and boomerang dentures, with more bought at the pharmacy.

Can each player use a different language?

Yes. Each player can set the game to English, Spanish or French, so a mixed group can play together.

What games are similar to Grannygeddon?

The closest matches on DebutPlay are OVERSTACK, Rebound Reactor, Throne Trouble. They share the same genre, so the controls and the pace carry over.

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