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Indoor Astronaut

Games & Interactive
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Founded
2018
Employees
1-10
Offices
1

About Indoor Astronaut

Indoor Astronaut is an independent Swiss video game development studio based in Zurich. Founded in 2018, it creates cooperative multiplayer games for PC and consoles and is best known for Unrailed! and Unrailed 2: Back on Track. Its work combines track-building, procedurally generated environments and roguelite mechanics, with communication and shared resource management at the centre of play.

The studio grew out of a student semester project in ETH Zurich’s Game Programming Laboratory in spring 2018. Its creators continued developing the project beyond the course and established the company as an official ETH Zurich spin-off. That university project became the foundation of the studio’s ongoing game series.

Cooperative games across platforms

Unrailed! entered Steam Early Access in September 2019 through partnerships with Daedalic Entertainment and Bilibili, followed by its full release in September 2020. The game brought the studio’s cooperative track-construction concept to Windows, macOS, Linux, Nintendo Switch, PlayStation 4 and Xbox One. Indoor Astronaut developed the Nintendo Switch port internally, while external developer Sickhead Games handled the PlayStation 4 and Xbox One adaptations.

The studio continued the series with Unrailed 2: Back on Track, which entered Early Access in November 2024. Working with publisher Kepler Ghost, it followed with a full release in 2026 across Windows PC, Nintendo Switch, Nintendo Switch 2 and PlayStation 5.

Development approach

Indoor Astronaut’s capabilities span game design, prototyping, programming, multiplayer networking and console adaptation. Its development work focuses on cooperative systems and procedurally generated voxel or grid-based environments. Early Access and community management also form part of its production approach, connecting the development of its games with player participation before full release.

More about Indoor Astronaut

Founders and current leadership

Thomas Wolf, Hendrik Baatz, Lukas Rahmann and Thomas Lang founded the studio. Following the departures of Thomas Lang and Valentin Scherer, the report identifies Wolf, Baatz and Rahmann as its three principal developer-owners. The commercial register names Wolf as chair of management and Baatz as a managing director.

Early development and support

The original university project responded to the course theme “Alfred Escher” and progressed through a board-game prototype before its digital build.

Swiss arts council Pro Helvetia supported the development of Unrailed 2: Back on Track alongside the studio’s publishing partnership.

Corporate milestone

The company was initially registered in Möriken-Wildegg and moved its statutory seat to Zurich in January 2020.

Notable credits

2 credits
  • Unrailed!
  • Unrailed 2: Back on Track

Offices

Where Indoor Astronaut is based

1 location

  • Zürich offices

    Headquarters
    Zürich, Zurich, Switzerland
    About this office

    **Office** Status: active Headquarters Address: c/o Thomas Wolf, Fliederstrasse 22, 8006 Zürich, Switzerland Registered domicile and overall legal corporate headquarters, corresponding to the saved Zurich headquarters association. --- **Swiss Game Hub** Status: active Address: Swiss Game Hub, Erika-Mann-Strasse 11, 8050 Zürich, Switzerland Direct co-working development workspace in Zurich Oerlikon, distinct from the registered domicile.

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