Gurnerman Space Agency // Out now

Lost In Space

Astra-9 Containment Breach

Wrong instructions from Microsoft 365 Copilot sent Tim Gurnerman into deep space aboard the brothers' homemade rocket. Follow his signal to Astra-9 as Fred, investigate an alien outbreak and help Mary survive as the search takes you deeper into the station network.

Complete campaign Version 0.1.1 Five missions Free browser play

Launch full campaign Download for Windows Watch trailer All games

Desktop recommended · keyboard and mouse or controller · sound on · progress saves locally in your browser

Fred Gurnerman stands inside the infected Astra-9 station

GSA // L-01 Horror · gunfire · flashing lights

5Linked missions

5Weapon slots

15Recoverable lore logs

1Hive sentinel

Distribution

Download & install

Windows · 64-bit

Full installer

The complete offline build. It installs Lost In Space as a desktop application with all five missions, audio and video packaged in, so it runs without a browser and without a connection once installed.

Version: 0.1.1
Size: 209 MB
Platform: Windows 10 / 11 x64

Download installer Play in browser instead

SHA-256ba711f97e4d1cecd1d5a111228323ce8494d24fa34dd0a40d84fbeb4020c1b33

This build is not code-signed, so Windows SmartScreen will warn the first time you run it. Choose More info, then Run anyway. Check the hash above against the downloaded file if you want to confirm it arrived intact.

Browser · any device

Install as an app

The same campaign, installed straight from the browser. It keeps its own window, icon and saved progress, and runs offline after the first load.

Open the browser build.
Use your browser’s install control — the icon in the address bar, or the menu, then Install.
Launch it from your desktop or app list like any other application.

Open browser build

Nothing is uploaded. Progress is saved on the device it is installed on, and clearing that browser’s data clears it.

In-engine footage

Official trailer

Mission brief

Contain the breach

Tim trusted Microsoft 365 Copilot's business version to explain how to build a rocket. Its instructions were wrong, and the brothers' first launch left him lost in space. Now his voice is coming from Astra-9, where Fred arrives to find emergency power, sealed research sectors and an alien infestation. With Mary on the radio, search the station for evidence of what happened to him.

The route does not end at the first breach. The complete campaign carries the GSA through Chufferson Relay, Gorge Station, the kaleidoscope transit and the final confrontation.

Field systems

Built for survival

First-person movement, aiming, sprinting, crouching and interaction
Health, armour, ammunition, reloads and multiple weapons
Objectives, checkpoints, mission select and locally saved progress
Subtitles, sensitivity, aim assist, render scale and screen-shake settings
Controller hot-detection with gamepad-first menu navigation

Campaign route

Five missions. One extraction.

L-01Astra-9 Containment Breach
L-02Chufferson Relay
L-03Gorge Station Ascent
L-04Kaleidoscope Transit
L-05The Answer

Controls

Suit interface

Action	Keyboard / mouse	Controller
Move / look	WASD / mouse	Left / right stick
Shoot / aim	Left / right mouse	RT / LT
Interact / reload	E / R	X
Jump / crouch	Space / Ctrl	A / B
Sprint / flashlight	Shift / F	Left stick click / D-pad up
Switch weapon	1–5 or mouse wheel	Y
Pause	Esc	Start / Menu

GSA transmission ready

Astra-9 is waiting.

The campaign opens full-screen in a separate tab so this briefing remains here when you return.

Play Lost In Space Download installer