Changelog

Version: 0.9.0
Date: 2026-11-02
  Info:
    - First release: a new mod with its own code and art, after the idea of Laser Fence by randomflyingtaco and Sacredanarchy, for Factorio 2.1.
  Features:
    - Laser fence posts: once charged, a post fills the gap to the next post in line with three laser beams, up to 12 tiles apart. Beams block biters, characters, vehicles and buildings; trains pass through and belts can run underneath.
    - Whatever attacks a beam from close by takes 5 laser damage per hit back, raised by laser damage research at three quarters of its effect on laser turrets. Enemies caught in the gap when a fence forms are burnt.
    - Beams have 200 health and heal 5 a second. A broken beam drops the beams between its two posts until both have recharged; short of power, a post's beams drop until it is charged again.
    - Laser gate posts: between two gate posts the beams open for your own side, like a gate.
    - Fences can cross at right angles, and a post placed inside a fence splits it.
    - Drag building places a post each time the gap reaches the post's reach.
    - While you hold a post, nearby posts show how far they reach along their row and column.
    - Hovering a post shows its state: charging, holding fences, waiting for a charged post in reach, or what is in the way. Anything in the way is also named in a message, and the fence forms once it is gone.
    - Quality: beams get the health of the lower-quality post of the two, 30% more a level.
    - Research: Laser fence, Laser gate, three levels of range (+3 tiles each) and three of efficiency (-25% of a post's own power each).
    - A post draws 400 kW plus 10 kW per beam tile, shared by the posts at its ends; a post holding no beams draws a tenth of its own power.
    - Startup settings for reach, power, beam health and damage back to attackers.
  Compatibility:
    - Posts and beams keep their full size under Squeak Through 2 and SmoothStart's squeeze setting.