SP AI boost mods/nations?

[Fantomen]

Those suggestions are all good for a challenging SP session.

For me it would be more interesting to try and find the ideal setting to mimic, as close as possible, MP opponents during the first two years. This is because i only use SP to playtest MP strategies these days, but I find it difficult to test anything beyond expansion since the environment is so fundamentally different. If you crank up the AI to much you face hordes that a human player couldn't afford, so you have to use anti-AI methods to beat them, but then you don't get to test your real strategies. If you leave the AI on lower settings it's just too easy.

I enjoyed SP really much during the first 6 months, I think the real trick to enjoying SP is to learn the game slowly.