Plan TURD upgrades
TURD is Pyanodons' one-time recipe-upgrade system. A TURD master technology offers mutually exclusive branches that can replace recipes or change their inputs and outputs. The decision is effectively permanent in the playthrough, so treat it as a factory-design choice rather than a routine research unlock.
The TURD page appears when the active project's synced data contains TURD upgrades.
Review and select a branch
- Open TURD.
- Search by the master upgrade or branch name when necessary.
- Expand a master and compare the offered recipe changes.
- Select the branch that matches the playthrough or the choice you want to evaluate.
PyOps re-solves blocks affected by the changed recipes. Review Factory → Overview and Factory → Connections afterward: an output may remain the same while its upstream inputs change substantially.
A PyOps selection does not make the choice in Factorio
Selecting a branch records the planning choice in the current PyOps project. Make the actual permanent choice in-game. When the companion mod is linked, the game's TURD state syncs back into PyOps and the page shows a green live status.
How the horizon treats TURD recipes
With the planning horizon set to Now, recipes belonging to an unselected branch remain unavailable. Recipe pickers explain which TURD master and branch they require.
PyOps never automatically picks an unselected upgrade. Available branches remain visible for comparison, while blocks continue to reflect the recorded choice.
Recheck affected plans
After changing a selection:
- Wait for re-solving blocks… to finish.
- Open blocks using the affected recipes and confirm their imports, machines, and fuels.
- Open Factory and check for new deficits or obsolete upstream production.
- Open Factory → Connections and check whether previously balanced block connections changed.
If the game's live selection and the project disagree, treat the live game state as the source of truth for a plan intended to match that save.