M@ni@c said:
It's only one unit. Unless you bring support troops, it will take a LOOOOOONG time to conquer several civs. Also consider you can gain better troops by building the Pact of the Nilhorn. Consider it takes quite a while before 100 XP are reached. Plenty of time for opponents to research towards a military tech themselves. Adventurers are nice, but not overpowered.
Don't get me wrong; I had support. For one thing, I made the other Adventurer a Scout, and once I advanced that unit to a Ranger, I used it as a support unit that was particuarly effective against any enemy units that weren't in cities. It was not, however, a primary attacker until around turn 280 or so. I also eventually got the Nilhorn Pact, and (through defending against Barbarians) got two of the giants fairly well promoted (LV 4+), and then sent them out to assist by reducing walls (they weren't strong enough to use as primary attackers, but evetually, they could take out a city in combination with highly advanced Rangers. I used a number of Hunters, and then Rangers as support units (largely to defend the cities I wanted to keep). Rather late in the game, I used more standard Heroes.
Timeline (so you can judge if it was "LOOOOOONG"):
Year 109 - Orthus takes out one of my cities.
Sometime between 112-120 - I take out Orthus with the Warrior (Adventurer).
121 - War (Sheaim)
145 - First Civilization gone (Sheaim)
158 - War (Doviello)
166 - War (Mercurians)
168 - Peace (Doviello)
177 - Pact of Nilhorn (note that for quite a while, I used them as defensive units against the Barbarians)
213 - war change - peace with (Mercurians), war with (Doviello) (couldn't find the last city of Mercurians)
252 - Second civilization gone (Doviello)
279 - war with Svartalfar
286 - created Baron Duin Halfmorn (This is the first significant attack unit I use, other than the first two adventurers)
(Somewhere around 290) - changed the Warrior (Adventurer) into a Dragon Slayer (Adventurer)
293 - war with Basium (cleanup - only one tiny city remains)
296 - Basium destroyed
302 - Svartalfar destroyed
315 - war with Kuriotates (by far the strongest civ -they actually trained Rangers and Archers; others had the tech, but never built)
335 - Kuriotates destroyed.
So the answers appear to be: a little over 200 years, and technically, I only destroyed two civs and reduced one civ to a single city using the Warrior as a primary unit.