All Army Attack on Steam Deck

Steam Deck compatibility for All Army Attack is unconfirmed. The store page fetched on November 15, 2026 shows an empty Deck results area and a resolved category of zero. There is no Verified badge, no Playable badge, and no Unsupported badge. Do not buy a Deck to play this game, and do not skip the game because of a badge that is not there.

Full controller support is a different flag, and it is present. A controller working is encouraging for a handheld and is not a Deck certification. Controls explains the flag and the missing button map.

What would have to be true on a Deck

The shop is a row of cards with small text. Cards quotes lines like "for every 1 unit in this Troops card" and a 2% curse on bosses. Small type is the usual Deck risk for this kind of interface, and it is a risk, not a test result. The battles are large crowds of sprites. Whether that crowd holds a frame rate on Deck hardware is unconfirmed. System requirements do not list a GPU at all, so there is no "equivalent to Deck" comparison to fake.

The platform flag is Windows. Deck runs a Linux-based system through Proton for Windows games. The store does not say Proton is tested. Linux as a native platform is false. Platforms has that flag. Native Linux being absent does not by itself make Deck Unsupported. It means you are in the unverified bucket until Valve or the developer prints a badge.

What to do instead

1. Wishlist on a normal Steam account. Wishlist does not require a Deck.
2. If you already own a Deck, install the demo there during the fest and look at two things: card text at arm's length, and a crowded fight. The demo page has the dates.
3. If the text is unreadable, play the demo on a Windows PC before you decide the 2027 purchase. There is still no price.
4. If a badge appears, believe the badge over this paragraph. The update log should repeat it.

Tip: Test Merchant Hat's tooltip and a Boss Curse card, not the key art. Those are the sentences you have to read in a run. The art will look fine and tell you nothing about the UI scale.

Warcluck and Fight or Flight are the systems worth learning on a monitor first if the Deck text fails. They do not require the handheld.

What people mix up

A cute 2D style is not Verified. Devolver publishing other Deck-friendly games is not this game's badge. A fest demo running on a desktop is not a Deck test. A YouTube trailer is not a Deck test. The only Deck test is the badge or your own session on the hardware.

Verdict: Controller support is yes. Deck status is unconfirmed. Play the demo on the screen where you can read the cards, and wait for a badge before you call it a Deck game.

FAQ