Aviassembly Full Release Adds Seaplanes and Firefighting

Aviassembly leaves Early Access on Steam

Jelle Booij released the full version of Aviassembly on November 12, 2026. The developer announced the date on November 3 and posted the release notes shortly after the scheduled 14:00 UTC launch. Steam lists November 12 as the full release date and April 11, 2025 as the start of Early Access. The Mexican storefront offers the Windows version for purchase.

The game is a single-player aircraft-building simulator. You design a plane, take on missions to earn money and research parts that let you carry more cargo or fly farther. The full release gives builders a new job that changes what a practical aircraft looks like.

Firefighting adds a route with two jobs

The campaign now has fires at buildings around the map. According to the release notes, a plane can hover over the sea to collect water and release it over a burning building. Putting out the fire earns coins.

Think about the new route as two legs. First you need to reach water and refill. Then you need to get back to the fire and deliver the load. A cargo design that serves a long trip can be a different fit for this job. The new mission gives players a reason to consider how a design handles the pickup as well as the delivery.

Seaplane pontoons change the design problem

Booij added two types of pontoon so aircraft can float. The notes say floats also make it easier to collect water for firefighting. The developer cautions that an aircraft can still sink when it is too heavy or hits the water too hard.

The update also adds adjustable hollow fuselages in build mode. Builders can adjust how hollow it is using controls on either side of the fuselage. Those construction options give returning players a reason to revisit an existing design before taking on the new campaign work.

Hard Mode changes damage and progression

The new Hard Mode puts ground-contact propeller damage in a less forgiving ruleset. It also reduces quest payouts and leaves fewer scraps for research. That makes a part unlock a choice between upgrades, especially when two improvements compete for the same limited supply.

What was already available before release

Booij’s November 3 post lists helicopters, Steam Workshop support and continued quests after the campaign among the changes made during Early Access. The full-release notes separately confirm French, Spanish, German, Portuguese and Dutch translations in the settings menu.

When the Steam Mexico offer ends

Steam Mexico showed the standalone game at MXN 86.79 on November 13, down 30% from MXN 123.99. The Mexican listing gives November 19 as the end date. Check that storefront for the price that applies to your account.