I find that under no circumstance is it worthwhile to pick the Selfish option in either events. To make them viable over the Hostile option, I think their duration should be reduced (as their descriptions suggest.)



e.g. In Unstable Portal, both Selfish and Hostile responses give -50% , but why would you pay 100 each turn rather than further impede enemy production at no additional cost? Perhaps the former could be considered if it halved the duration of the event's effects or something similar.



What is your opinion on this?

the only reason i can see of someone not wanting to pick the hostile option is if they don''t want others to hate them for not picking the option. Otherwise it goes to game theory, and unless you absolutly trust everyone else involved will pick selfish you have to pick hostile

Yeah, isn't really a good option given the other ones. -100 =/= add extra 20% added to AI ship & industry cost.



Helpful - Study the portal with the help of allies who will benefit from the discoveries.

+15% 1003scienceSmall on empire for allies (20 turns)

-75% 1003scienceSmall on empire (20 turns)

Hostile - Re-orient the portal and channel its energies so that the emanations affect other empires.

+20% industry cost of improvements on star system for other empires (20 turns)

+20% ship cost on star system for other empires (20 turns)

-50% 1003scienceSmall on empire (20 turns)