Changelog

Version: 0.0.2
Date: 2026-09-29
  Changes:
    - Flyer nests are now added next to existing enemy bases instead of taking the place of a vanilla nest. The map is generated exactly as without the mod, and removing the mod leaves every enemy base with its vanilla nests (no gaps).
    - Adding the mod to a game in progress: flyer nests are added once to the existing enemy bases, far from the start and never within 50 tiles of anything built by a player.
    - Newly generated map areas and bases founded by enemy expansion also get flyer nests.

Version: 0.0.1
Date: 2026-09-29
  Features:
    - Flyers: flying biters in four evolution tiers (small, medium, big, behemoth), in the vanilla art style.
    - They fly straight over walls, water and cliffs; they land when they wait, walk around their spot and fight on the ground, with their own take-off and landing animations.
    - While flying they can only be hit by turrets that declare they can shoot at air targets. On the ground every turret can hit them. If an anti-air turret shoots one, it flies to that turret, lands beside it and attacks it.
    - Flyer nest: a new enemy spawner, mixed into enemy bases a bit further from the start. Its flyers hatch airborne.
    - Turret priority lists: pick a flyer once and it counts both in the air and on the ground.
  Modding:
    - To make a turret able to shoot flyers in the air, add "flying-robot" (or "air-unit") to its attack_target_mask in data.lua or data-updates.lua.