I think I completely failed to make my point - I didn't have any experience with difficulty 8, but the rate of scaling for waves between difficulty 8 and 9 is known, and they both hit mk3 at the same time (I believe?), so from there it should be relatively easy to extrapolate down with regards to the necessary components to survive at difficulty 8. Difficulty 8 has such-and-such a ratio of ships per wave to diff 9 at such-and-such an AIP, and I'm giving an assessment of what was needed to survive the diff 9 waves, so apply the wave ratio to the knowledge requirement on diff 9 and you'll have a ballpark estimate of the kind of situation a player will be facing at diff 8.
And yeah, I know diff 9 is suicide - I've kicked it down to diff 7 while I keep trying to work through the fallen spire campaign (tried it once at diff 9 and hahahahahaha I learned my lesson).
I think I am fundamentally missing something. With all my testing, between 8.0 and 8.3 the AI jumps a whole tech higher from the very start of the game. Let me pull it up:
Here is the data from the wiki:
http://www.arcengames.com/mediawiki/index.php?title=AI_War_-_AI_Progress"
Here is how the level of the AIs are calculated:
* Mark IV = 1200 - ( Difficulty * 10 )
* Mark III = 800 - ( Difficulty * 10 )
* Mark II = 300 - ( Difficulty * 10 )
For "Technologist" type AIs, if their level would be II or higher, they are instead Mark IV. If they would be below Mark II, they will instead be Mark III.
Additionally, when playing on difficulties greater than 8, the AI players will always be one Mark level higher than normal, until they hit Mark IV. "
Meaning the 8.3 AI hits MK III at 217. The 8.0 hits MK III at 720. So the difference between the two is 503 points; a MK II nuke! 10 MK I nukes! 25 planets!
...
I never thought the difference was so great. Remember that the power increase in tech is massive despite the "slight" decrease in corresponding wave sizes / reinforcements.
In conclusion, the difference between 8.0 and 8.3 is the most massive shift for 7.0+ if that is when the AI stops getting "smarter" at 7.0. SO the difference between 8.0 and 9.0 might be...massive.
[If we are posting direct notes to the devs] This game needs quite a lot of time to be dissected by players before any major changes happen in my opinion, so I'm quite happy with letting things settle for a while and only tweaking. Frank discussion while investigating a "what if" puzzle like this one helps dissect the game I think. I'm sure you have considered a lot of these things already, but a second group of eyes helps. In addition, I feel that it is important to point out any unusual things that I notice in my game play since I know you have so many things to check and occasionally things go unnoticed. You have all done well!