Steam app 2660460 · updated 12 Sep 2026, 18:26 UTC
Build and fly your own airplane! Complete missions to earn money, upgrade your plane, and discover new locations in an open world.
718 hourly samples, with the daily peak drawn over them. Weekends are shaded.
18 months, April 2025 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 438 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 280 hourly samples. Each dip is a night. Weekends are shaded.
Aviassembly was released on 11 Apr, 2025.
| Language | Full audio |
|---|---|
| English |
A blank audio cell means full audio was not marked in the returned language list.
11 achievements in total.
45 developer announcements, Sep 2024 to Sep 2026 · times in UTC
Cloud Saves I added Steam cloud saves to the game, which was a highly requested feature. This means that save files should now be automatically synced between multiple devices. Rotation joint changes I added some features to the rotation…
Jelle BooijEndless quests The most common feedback I’ve received is that players are disappointed that there are no new quests after finishing the game. A common suggestion has been to add endless randomly generated quests for those who want to keep…
Jelle BooijI want to give a quick update on my progress towards the full release. The roadmap I posted in April is proving to be a bit too ambitious. The first 2 months went well, and while I did manage to ship Steam workshop support, some of the…
Jelle BooijI had a lot more planned for this month than I actually got done. The same thing happened last month, so my planning has been a little optimistic. But it’s not all bad, I did add a big feature this month. Steam Workshop This month finally…
Jelle BooijFixed performance issues with propeller engines Fixed invisible helicopter rotors Fixed upgrade hint in the wrong place Fixed slow backwards taxing Improved explosion visuals
Patch notesLast month I laid out a plan for May. Unfortunately not everything on the list made it in. But I did get a good amount done, and I would rather release what is ready than hold it back. This update is mostly about visuals and performance. It…
Jelle BooijRebalanced engine efficiency curves Rebalanced some wheels Small performance improvement
Patch notesThis update is focused on physics improvements. The goal was to add more depth without sacrificing the accessibility that makes Aviassembly what it is. I hope this update strikes a good balance. Engine efficiency Engines now have an…
Jelle BooijEdit: Unfortunately, this roadmap has proven to be a bit too ambitious. The game will not ship in August of 2026. It's been a year this month since the early access release of Aviassembly. Development has been a bit inconsistent, so I want…
Jelle BooijThere is an issue where the screen suddenly turns white when flying a helicopter. This is the second attempt to fix it, because the previous attempt didn't work. Please let me know if it occurs for you. I also made the helicopter landing…
Patch notesThere was a weird crash where the screen turns white and the game crashes. I hope that this patch will fix the issue. Let me know if it doesn't.
Patch notesThis update introduces a much requested and anticipated addition: Helicopters! I hope this update will enable many creative designs and make new creative solutions possible in the campaign. Vertical flight physicsHelicopters require…
Jelle BooijFixed not being able to respawn at the current base in snow and desert
Patch notesThis update focuses on reworking the flight UI. It’s not the biggest or most exciting part of the game, but while I’m brainstorming bigger changes, I felt this update was needed. General UI redesign The original flight mode UI was a bit…
Jelle BooijFixed Two birds, one stone triggering when you only make a single delivery Fixed second turbine mission triggering before earthquake Fixed cargo not being saved correctly
Patch notesAfter a long wait, the 3rd update to Aviassembly is finally here! I hope to release updates more quickly from now on. Achievements This update finally adds Steam achievements to the game. There are 11 achievements now, but I plan to add…
Jelle BooijAviassembly was developed using the Unity game engine. Unity recently announced a security vulnerability affecting some versions of the engine. This patch should address the issue.You can read more about it here…
Patch notesHi everyone,It’s been a few months since my last update, and I had planned to release a new one today, as I mentioned on Discord and the Steam forums.Unfortunately, I encountered some unexpected issues that need more time to resolve. Rather…
Jelle BooijAdded "V" to letter decals. Fixed rocket engine and afterburner flame staying on after being out of fuel.
Patch notesAdded "V" to letter decals. Fixed rocket engine and afterburner flame staying on after being out of fuel.
Patch notesColor pickingCustomizing your plane with painted parts and decals is a key feature, but color options were limited. With the new color picker tool, you can choose from an unlimited range of colors to bring your design to life.New partsI…
Jelle Booij- Jet engine and propfan engine now paintable - Decals no longer generate drag - Fix wrong base airport spawn issue - Fixed decal mirroring issue - Fixed some decal layering issues - Fixed decals not being destoryed when plane crashes…
Patch notesImproved decal move tool Decal scaling on both axis at once now possible Better decal layering calculations Decals recalculating better Fixed parts becoming unselectable after selecting engine settings Fixed decals not disappearing when…
Patch notesSignificant performance improvement for changing decal layers Fixed old save files defaulting to relaxed mode Better decal updating when plane is modified Improved decal layering visuals
Patch notesThis is the first Aviassembly content update! I’ve been easing back into things after launch, so this update isn’t the biggest one, but I hope that it still contains some exciting features! Decals The biggest change is that you can now put…
Jelle BooijFixed building camera being zoomed out very far Fixed plane editor bug causing everything to be unselectable Fixed running out of money in creative mode Removed some cheats
Patch notesFixed issue with parts shifting when attatched to rotator.
Patch notesFixed balloon soft lock. Fixed input not being locked when typing in save file name. Fixed weather station not completing correctly for some people. Fixed rocked engines particle not showing up for mirrored rocket engines.
Patch notesLaunch The launch of Aviassembly went really well. Thank you so much for all the support! It is amazing to see that people are enjoying the game. All the feedback, bug reports and ideas that I received are really useful. While I try to read…
Jelle BooijI've hopefully resolved the issues the patches from yesterday were having. This patch should fix: Pink terrain bug Build mode crashes Stuck in build mode issue Please let me know if this patch is causing any issues.
Patch notesI got some report that today's patches broke build mode for some people. I reverted the patches until I have a better understanding of the issue.
Patch notesThis patch should fix an issue where build mode will crash when hovering over parts. Let me know if it still occurs.
Patch notesFixed a bug where terrain would be completely pink after loading a sandbox save.
Patch notesThanks to all the detailed bug reports, I was able to fix the bug where you can get stuck in build mode. In case the issue still occurs, let me know!
Patch notesThere was an issue where undo would reset your money, this should now be fixed. I also fixed some small spelling issues.
Patch notesAviassembly just released in Early Access! Thank you so much for all the support. Development will continue and I will post a roadmap later this week If you find any bugs or have feedback, let me know. I'm sitting ready to try and fix it as…
Jelle BooijAfter 2 years of work, Aviassembly is almost ready for takeoff!! The early access release will be around 10:00 EST today. I can’t wait to share everything I’ve been working on! Stay tuned for launch.
Jelle BooijSad news, but the demo will be retiring this tuesday (8th of april) due to the upcoming full release. I’m very grateful to everyone who played it, and shared their thoughts! Your feedback helped shape the game, and I wait for you to…
Jelle BooijAfter almost 2 years of hard work, I'm happy to announce that Aviassembly finally has a release date! Release Date Aviassembly will launch in Early Access on Friday April 11th! Why early access? Community feedback plays a big role in the…
Jelle BooijController support Controller support was already supported, but it was very limited. This update introduces full controller support. You can change keybinds for your controller, and the game has a virtual cursor feature so you can use a…
Jelle BooijControls Rework Something that became apparent when playtesting and asking for feedback, was that the plane controls are not intuitive for everyone. A major reason for this seems to be that rolling the plane does not actually turn the…
Jelle BooijPartial Deliveries You can now complete quests in multiple runs. This change is not as small and simple as it may sound. It required me to rework and rebalance all the quests, and even add 4 more cargo types. I think it actually changes the…
Jelle BooijThis update is a bit small, but I wanted to get it out as fast as possible and think that it is worth highlighting the added features in a blog. Quest markers As mentioned in the previous update, I am focussed on making the game more…
Jelle BooijI want to start off by thanking everyone for the feedback on the demo! It has been great to see people enjoying the game and sharing their thoughts. I’ve read all the feedback I could find, and hope that this update will address some of the…
Jelle BooijThe demo for Aviassembly is finally available! I hope you enjoy the game. Feedback The game is still in development, and your feedback is crucial. Feel free to share your thoughts on the Steam forums, or Discord. Bug reports The game is…
Jelle BooijWhat Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | Aviassembly.exe | windows |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinAppDataLocalLow | Aviassembly\Aviassembly\SaveGames | *.plane |
WinAppDataLocalLow | Aviassembly\Aviassembly\Plane Designs | *.planedesign and below |
It runs on public data and somebody's spare time.
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