Rikki Tikki Traveller
Cosmic Mongoose
The current list of background skills based on homeworld is incomplete, since all types of worlds are not represented.
OPTION 1: Allow characters with less than 4 background skills to select from the education skills if they want.
OPTION 2: Allow characters to select more than one type of Trade Category skill. For example, Non-Industrial and Agricultural are pretty common together. As long as you don't select opposites such as Hi Pop-Low Pop, you should be OK for an abstract system.
OPTION 3: Allow characters to take BOTH of the skills under the Technology skills.
For Primitive Technology, I believe that you should also add Survival 0 as a possible background skill, that gives each Technology category 2 skills to pick from.
Since the Homeworld skills are based on the Trade Classifications created during world generation, there aren't really Environment types for Earth-Like worlds (the most common main worlds).
OPTION 1: Allow characters with less than 4 background skills to select from the education skills if they want.
OPTION 2: Allow characters to select more than one type of Trade Category skill. For example, Non-Industrial and Agricultural are pretty common together. As long as you don't select opposites such as Hi Pop-Low Pop, you should be OK for an abstract system.
OPTION 3: Allow characters to take BOTH of the skills under the Technology skills.
For Primitive Technology, I believe that you should also add Survival 0 as a possible background skill, that gives each Technology category 2 skills to pick from.
Since the Homeworld skills are based on the Trade Classifications created during world generation, there aren't really Environment types for Earth-Like worlds (the most common main worlds).