lightyears — single player real-time strategy game with steampunk sci-fi


lightyears [options...]


Start the game in windowed mode, regardless of the last saved state.
Start the game in fullscreen mode, regardless of the last saved state.
Mute all sounds.
Restore default configuration (any existing configuration will be deleted).


lightyears is a strategy game with steampunk elements. You are the ruler of a new city on an alien planet and you have to provide it with energy to let it advance. To achieve this you have to construct "Steam Makers" and connect them through pipes and nodes.

Ensuring a stable and plentiful steam supply will let you upgrade your city. This will result in additional "work units" which will allow you to do a higher amount of simultaneous construction work. Other than constructing "Steam Makers", nodes and pipes, you can also upgrade those to increase their efficiency.

To make your task more difficult there are atural phenomenons that may harm part of your network, in which case you will have to repair it in hurry before the city loses too much energy. You'll also have to face enemy alien ships, of increasing power as the game advances, which will attempt to destroy your infraestructures.

In-game keyboard controls

Build node: N
Build pipe: P
Destroy: D, backspace
Open the menu: escape


lightyears was written by Jack Whitham <> and this manual page by Siegfried-A. Gevatter <>.