code/__DEFINES/techtree.dm 
| TECH_FLAG_MULTIUSE | The tech can be purchased multiple times |
|---|---|
| TECH_FLAG_DISABLED | Prevents a tech from being added to the tech trees |
| TECH_FLAG_NO_ANNOUNCE | Don't announce when this tech is bought. |
| PASSIVE_INCREASE_AMOUNT | Controls the passive increase amount. |
Define Details
PASSIVE_INCREASE_AMOUNT 
Controls the passive increase amount.
TECH_FLAG_DISABLED 
Prevents a tech from being added to the tech trees
TECH_FLAG_MULTIUSE 
The tech can be purchased multiple times
TECH_FLAG_NO_ANNOUNCE 
Don't announce when this tech is bought.