An early-game burner turret: a furnace with a cannon on top. Feed it any item, from any mod, and it bakes the junk into shells and fires them at enemies.
Mods introducing new content into the game.
Version: 0.3.10
Date: 2026-11-08
Changes:
- Junk Shells now stay inside the Junk Cannon. Inserters and loaders can't take them out,
shells taken out by hand go back into the cannon, and mining a cannon deletes its shells
instead of giving them to the player or robot.
- Junk Shells left on the ground or in player inventories by older versions are removed.
Bugfixes:
- Fixed the cannon head disappearing when mining a Junk Cannon failed because the inventory
was full.
Version: 0.3.8
Date: 2026-11-08
Graphics:
- Junk Cannon ghosts (blueprints, copy-paste, undo) now show the cannon head.
Sounds:
- Firing sound is quieter.
Version: 0.3.7
Date: 2026-11-08
Bugfixes:
- Fixed full Junk Cannons dropping a shell on the ground (marked for deconstruction) every time
the mod was updated or changed.
Version: 0.3.6
Date: 2026-11-08
Graphics:
- Animated flames inside the furnace window while baking shells.
- Softer, warmer window glow.
Version: 0.3.5
Date: 2026-11-08
Graphics:
- The Junk Cannon now sits lower, level with other buildings.
Sounds:
- Firing sound is quieter.
Version: 0.3.4
Date: 2026-11-08
Graphics:
- Brighter furnace window glow, rendered from the model.
Sounds:
- Shortened the cannon firing sound to 1.5 seconds with a fade-out.
Version: 0.3.3
Date: 2026-11-08
Graphics:
- The Junk Cannon is drawn a bit smaller.
Sounds:
- New cannon firing sound.
Version: 0.3.2
Date: 2026-11-08
Graphics:
- Replaced the gun turret muzzle flash with a puff of smoke at the base of the barrel.
- The alt-mode ammo icon no longer covers the furnace window.
Sounds:
- New cannon firing sound.
Version: 0.3.1
Date: 2026-11-08
Graphics:
- The Junk Cannon is drawn smaller so it fits its 2x2 footprint better.
- The muzzle flash now appears at the end of the barrel instead of in the middle of the turret.
- The alt-mode shell icon no longer covers the furnace window.
Version: 0.3.0
Date: 2026-11-08
Graphics:
- New, taller cannon model with re-rendered head and base.
- Added shadows for the cannon head and the furnace base.
- New window glow to match the new base.
- New thumbnail.
Changes:
- The mod is out of alpha.
Version: 0.2.4
Date: 2026-11-04
Features:
- Added a "Fuel can be used as junk" startup setting (off by default).
Changes:
- Fuel items are no longer baked into shells by default, so inserters feeding from a mixed chest
or belt keep coal in the burner and use the other items as junk.
Version: 0.2.3
Date: 2026-11-04
Bugfixes:
- Fixed the furnace base drawing on top of the cannon head.
Version: 0.2.2
Date: 2026-11-04
Graphics:
- New rendered furnace base, replacing the stone furnace graphics.
- The furnace window glows and flickers while baking shells.
- New item icon.
Version: 0.2.1
Date: 2026-11-04
Graphics:
- New rendered cannon head with 64 directions.
Version: 0.2.0
Date: 2026-11-04
Major Features:
- First public alpha.
Features:
- Startup settings for shell damage, fire cooldown, range and bake time.
- Shots now have a muzzle flash and hit sparks.
- Works on Space Age space platforms (platform build and mine events).
Changes:
- The hidden cannon is no longer invulnerable. Damage it takes is passed to the furnace,
so enemies can no longer get stuck attacking an unkillable turret.
- The 10-shell buffer now uses the furnace's own "Output full" stop instead of pausing it by script.
- Mining a Junk Cannon returns the shell chambered in the cannon.
- Inserters can no longer put shells straight into the hidden cannon.
- Junk recipes now cover every item type the game knows, and skip parameter items.
Bugfixes:
- Furnaces paused by 0.1.x scripts are un-paused when loading an old save.
Version: 0.1.5
Date: 2026-11-03
Changes:
- Rebuilt as a native burner furnace with a hidden ammo turret. Old chest cannons are migrated.
Bugfixes:
- Updated to Factorio 2.1 APIs: crafter_input/crafter_output inventories, recipe categories,
and disabled_by_script.