
Originally Posted by
TheBromgrev
Just to clarify, the early access to reactors is part of how the HPP changed the rocket and nuclear tech trees. Each new level of those one-shot techs now requires a certain level of the appropriate test site, and the test site level requirements go up the further along you go. Think of the test sites as the actual government-funded research facilities rather than a nuclear reactor as you'd think of today.
Only a few countries have early access to the reactors. It's been a while since I checked, but I believe only the US, UK, Germany, and Japan can build them from the start, since only those nations had government-funded nuclear research programs in 1936. The list for rocket sites is longer: US, UK, France, Germany, Italy, Austria, Czechoslovakia, and USSR (world leader in rocket engine research at Leningrad until the Purges began).
Anyway, you have quite the challenge coming up.