Changelog

Version: 2.9.14
Date: 2026-06-25
  Bugfixes:
    - Fixed a crash ("attempt to index local 'entity' (a nil value)" in proxy_name) when creating a blueprint above ground over a Beltlayer connector. Ghost entities on the underground editor surface are now matched by their ghost name, and any underground entity that can't be resolved is skipped instead of crashing the game.

Version: 2.9.13
Date: 2026-06-25
  Graphics:
    - New mod thumbnail: the BELTLAYER logo framed by the underground belt loop.

Version: 2.9.12
Date: 2026-06-25
  Bugfixes:
    - Fixed underground belts, splitters and connectors getting marked for deconstruction when a filtered deconstruction planner (e.g. trees-and-rocks) was dragged from remote view. When the planner's filters can't be read, the mod no longer propagates any underground deconstruction instead of marking everything in range.

Version: 2.9.11
Date: 2026-06-25
  Bugfixes:
    - A trees-and-rocks-only deconstruction planner no longer marks underground belts, splitters or connectors for deconstruction; it only affects trees and rocks above ground as intended.

Version: 2.9.10
Date: 2026-06-25
  Bugfixes:
    - Building a connector above ground where the underground is obstructed no longer consumes the item; manually-built entities the mod rejects are now refunded instead of lost.

Version: 2.9.9
Date: 2026-06-25
  Features:
    - Belt-connector ghosts placed above ground now show a matching connector ghost on the underground surface, so you can see where the underground end will land.

Version: 2.9.8
Date: 2026-06-23
  Features:
    - Updated for Factorio 2.1 and Space Age.
  Changes:
    - Removed the experimental underground train/subway system to focus on a clean, stable belts-only release.
    - Underground circuit network, fluid network, Factorissimo 3 integration, and terrain mirroring are now optional and OFF by default for the classic belts-only experience.
    - Underground pipes and storage tanks now show their fluid contents in alt-mode, matching surface entities.
  Balancing:
    - Pipe connector now costs 2x a pipe-to-ground.
    - Circuit connector now costs 2x a medium electric pole (8 iron sticks, 4 steel plates, 4 copper cables).
  Bugfixes:
    - Reworked the underground fluid network for the Factorio 2.1 fluid API.
  Translation:
    - Completed Czech, German, Spanish, French, Korean, Brazilian Portuguese, and Russian translations.