[Makhil]

Ter: Roids Protection I, II, III
each research adds a percentage to the roids armour

Cath: Ultimate Emp I, II, III
each research adds a percentage of emped attackers that won't be able to go back home

Xan: Total Cloak I, II, III
each research allows to cloak a percentage of the pods

Zik: Scrapyard I, II, III
each research gives an extra percentage of resources when selling ships

Etd: chooses one of the above