A-Train 9 PRIME LINE Launches December 10 With Free-Form Curves And 16-Car Trains
The Flexible laying setting removes a track-construction constraint that shaped every previous A-Train 9 release, and ArtDink pairs it with a trade-in campaign aimed at lapsed owners of Ver.1.0 through Ver.5.0 rather than only new buyers.
Key Facts
- A-Train 9 PRIME LINE launches for PC on Steam on December 10, 2026 at 18,480 yen including tax.
- A-Train 9 PRIME LINE expands maximum train consists to 16 cars, up from 10, and coupled trains can run up to 32 cars.
- The Flexible laying setting in A-Train 9 PRIME LINE generates track and road curves and gradients at any curvature or angle.
- Track appearance in A-Train 9 PRIME LINE can be selected from four types: ballast track in gray or brown, direct-fastening track, and slab track.
- The Japanese version of A-Train 9 PRIME LINE includes 341 vehicles from JR and private railways and about 600 types of structures.
Reporting from 4 sources: 4Gamer.net, ASCII.jp, Automaton, Game Spark.
ArtDink announced on September 25, 2026 that A-Train 9 PRIME LINE will launch for PC on Steam on December 10 at 18,480 yen including tax. The city-development railway simulation reworks track and road laying with a new Flexible setting that generates curves and gradients at any curvature or angle, allowing long gentle curves and loop lines. Track appearance can be chosen from four types: ballast track in gray or brown, direct-fastening track, and slab track. Train consists expand to a maximum of 16 cars, up from 10, and coupled trains can run freight formations of up to 32 cars. Curved stations with curved platforms are added, along with two-lane-each-way roads. The Japanese version includes 341 vehicles from JR and private railways and about 600 structure types. ArtDink also plans a special-price campaign for owners of A-Train 9 Ver.1.0 through Ver.5.0, with details to come on Steam News and the official website.
The train-construction link imports custom vehicles from the separately sold A-Train 9 Train Construction, and the Japanese version ships 341 vehicles from JR and private railways, excluding Keihan Electric Railway. More than 6,000 Steam Workshop vehicles can load into the game.
The setting also expands the city layer. Small objects such as share bicycles and flower beds can be placed overlapping inside building lots, and new large structures include greened buildings and basketball arenas. Lighting and reflection expressions were rebuilt, with cloud shadows and richer water rendering, plus renewed tree models and road textures. Game modes add new maps and clear conditions, and a tutorial map covers controls and tips. Every game-mode map loads in Construction Mode for building without fund limits. Autosave keeps up to five slots every 10 minutes, and UI scaling is adjustable.
Minimum specs list Windows 11 (64-bit only), Intel Core i3 8100 or higher, 4GB RAM, 8GB storage, and GeForce 9 series or RADEON HD4000 series graphics or later with 512MB VRAM.
Synthesized by Yomimono from the 4 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.
Sources
- 4Gamer.net 「A列車で行こう9 PRIME LINE」，12月10日発売。自由な曲率の線路や最大16両編成，カーブ駅など大幅進化を遂げたA9最新作
- ASCII.jp 休眠中の「A9」ファンに再起動の時が来たっ!!＝大型改良版「A列車で行こう9 PRIME LINE」発表＝線路・道路の刷新や16両編成に対応で12月発売!!
- Automaton 『A列車で行こう9 PRIME LINE』発表、12月10日発売へ。ついに「カーブ線＆ループ線」実装、自由度高まったパワーアップ最新作
- Game Spark 『A列車で行こう9 PRIME LINE』Steamで12月10日配信！老舗の都市開発・鉄道SLG決定版は最大16両編成や自由なカーブ実現し反射表現も綺麗に