Choose your origin, create a route to nearby airports, choose the right plane, set a schedule for your flight. Maximize the use of planes, airports, transit routes, etc. to earn wealth, and expand routes to the world.

Public builds
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Counted once we have watched for 90 days (since 21 Oct 2026)
Distinct builds deployed to a game's public (default) Steam branch, as Steam's client network describes them.
Checked within minutes of each Steam change. Observed since 21 Oct 2026.
Source: Steam client network (PICS), App info, public branch. Full methodology
Latest public build
Build 10471747
Update posts
0 postsPosts announcing an update, tagged or not
Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.
Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology
Typical gap between builds
Not enough builds yet| Build | Went live | Patch notes |
|---|---|---|
| 10471747 | Updated description on February 3 |
From Steam’s client network, last checked . Builds before 21 Oct 2026, when we started watching, aren't listed. Patch notes are the developer’s update post from an hour before to a day after the build. Not every build gets one. How we count
| Posted | Update |
|---|---|
| 3 Feb 2023 | Updated description on February 3 Patch notes |
| 4 Oct 2022 | Updated instructions on October 4 Patch notes |
| 16 Sept 2022 | Updated instructions on September 17 Patch notes |
| 5 Sept 2022 | Updated on September 5 Patch notes |
| 4 Sept 2022 | Updated on September 4 Patch notes |
| 3 Sept 2022 |
| Updated on September 3 Patch notes |
Steam keeps no record of past build numbers, so before 21 Oct 2026 a game’s update history comes from its own Steam news: posts tagged as patch notes, and untagged posts that plainly announce a patch or a released update. Older posts are still being read in, most played games first. How we count