Leere
Chieftain
Lol you mean beating the ai on deity /decimatus, even harder on CCTP?
Build Caveman, scout the area, be friendly to the ai dont harm them could be end in war.
I ended my testing game without a war before indusrtial age, and i started it)
Keep your goals in focused, even when it takes a lot odf turns,.
But the most important thing, dont get behind in technologies.
Also the Civ you play with is important, my choice is korea.
Great unique units and a big science bonus.
Nononono, i'm not long ago started on deity(3 games in total), in CCTP will try now for the first time now

But in CCTP(i see it somewhere...) ai don't have tech boost at start(though 3 or 2 towns is good too), so for me it's a little bit easier(unhappy ai, so cute xD).
Oh, just remembered, bug with unhappy barbarians is cleared?)