By utilizing the spreadsheet linked below you can find references to most of the elements that you will be using to build mods that exist in game. Most of the relevant default values have been included as well for reference. There is a lot of information provided on the different tabs of this spreadsheet so makes sure to utilize it.
Tech Crafting Requirements
Player upgrades and stats (like armour values, laser damage, etc)
Products and Substances (including values, charge amounts, legality, etc)
Creature Data (including movement speed/range, swarm data, min/max scales, etc)
Weather Table (including temps, toxicity, and radiation. As well as a separate table showing at what temperature damage begins to occur, for weather mods this is very useful)
Weather Text (cross reference from in-game text to weather ID)
Notice: This spreadsheet has not yet been fully updated to include new data introduced in the 1.3 Atlas Rises update. However most of the information contained on the spreadsheet should be complete, albeit some may be missing. This table is open to edit and update for any interested.
ID translations is another file that could be useful as it brings cross reference of all the text values and their IDs.
This file is maintained and managed by theFisher86 (You can contact him on Discord at @theFisher86).