first i am sorry my english poor
i was played ufoai dev2.3 r27420
but i wonder why i don't reserch new aircraft? every reserch is finished but astro navigation reserch is not yet what can i do reserch it?
and ufo yard is full and then i can't sell them?
my play time is almost one year. but i can see any other alien.. just three kind.... taman,othnok, bloodspider. but i play in 2.1 i can see another alien
in dev 2.3 isn't not
what problem to me?