Formidecks
A deckbuilding game about real ants, made by an ant keeper. Collect real species, build a deck around a queen, and play it as a living colony that forages, farms, fights and flies.
Works on phones and computers. Your progress can follow you with a free account.





Your deck is a colony
Build a deck around a queen, then start a colony from it. Every card hatches as an ant that walks the map on its own: through tunnels, across the surface and up into the trees.
Real species, real behaviours
Aphid farmers, slave-makers, social parasites, army ants, repletes, ants that play dead and majors that plug the nest with their heads.
A living map
Three layers to explore. Aphids, ladybugs, tiger beetles, grass spiders, dragonflies and rival colonies with minds of their own.
Raise, raid and fly
Lay eggs, feed larvae, launch nuptial flights, found second nests and wipe out your rivals. Or farm peacefully. Your call.
Learn as you go
A campaign teaches one thing at a time, then quick, custom and team matches let you play your way.
Collect and trade
Open packs, merge duplicates into rarer ones, trade with friends, and chase daily and weekly quests.
No ads, ever
Free to play. Anything a paying player could ever have, a free player can earn by playing.
Every card is a species
Each card is a real ant with its own stats and abilities, drawn by hand. More species arrive with every series.

Temnothorax ambiguus
Lives in acorns and twigs, spreads over several nests and climbs trees twice as fast.

Colobopsis impressa
Its majors have flat, plug-shaped heads that seal the nest entrance against raiders.

Nylanderia bourbonica
A fast, many-nested crazy ant whose queen speeds up the whole colony.

Lasius niger
The black garden ant: herds aphids and lives on their sugar.

Lasius claviger
A social parasite: its queen kills a host queen and takes over her workers.

Brachymyrmex depilis
Tiny and quick to grow: its colonies start with an extra-large first brood.
Start playing
The same game everywhere. Make a free account in Settings and your colony comes with you between devices.
In your browser
Nothing to install. Works on computers, iPhones and Android phones.
Play nowOn iPhone: open Play in Safari, tap Share, then Add to Home Screen to get it like an app.
Android app test build
The Android app runs smoother and works offline. Google Play is coming soon; until then you can install the test build directly.
Ask for the test build- Tap Download and open the file when it finishes.
- If Android asks, allow installs from your browser.
- Open Formidecks. It updates itself from then on.