Lost Technology 2 Released
https://steamcommunity.com/sharedfiles/filedetails/?id=2566455429
Lost Technology World Released
https://steamcommunity.com/sharedfiles/filedetails/?id=2566719273
Difference from previous version
Technical blueprints are market price based on the workload of the research.
Some core research and research that are too expensive have been modified to require two technical blueprints.
Overview
This mod is simple but offers a completely different gameplay.
Choose 'lost technology' in the scenario
All research starts locked.
Every research requires a techprint.
The techprint must be purchased in settlements of other faction.
Or you can get it through quests.

Recommended mod to use together
Faction base's sell list : https://steamcommunity.com/sharedfiles/filedetails/?id=2083067219&searchtext=
- this mod is need dlc royalty
- The resource uses only vanilla resources, so when the vanilla language patch is completed, all of them will be displayed in your language naturally.
- Compatible with most faction and research tree addition modes.
Please take this mod and modify it. The source code is included.
I'd love to see variations come out with various ideas.
I'm a game designer, and I haven't implemented many ideas yet due to lack of time.
If you are proficient in C# and are interested, please contact me on the rimworld discord.