I'm seeing two different research paths:
"Extra <resource>" and "Extra <resource> (Infinite)"
The non-infinite seems to use non localised names for resources - "coal", "iron ore" while the infinite one uses localised ones - "Coal", "Iron Ore", etc.
The liquid ones don't seem to have the "Infinite" research.
None of these have descriptions so I'm just confused on what the difference between them is?
