Age of Wonders III

• Being aggressive tends to work better than turtling as the enemy usually starts with more cities and will out-produce you in the long run if you don't even the odds in time.

• Don't immediately reload if an essential hero dies in battle, all of your heroes have Resurgence in the campaigns, meaning they'll auto-revive at low health after every battle for as long as you win.

• Artifacts and levels carry over so getting as many as possible before finishing a map is a good idea. There's a level cap on each map, mind.

• Try to get flying mounts such as wyverns for as many of your heroes as you can, having a squad of flying heroes speeds things up immensely. Keep an eye out for a spell that allows you to summon random mount eggs as it's the most reliable source for them.

• Your leader hero often changes between scenarios which also resets all the skill points on both heroes affected, remember to reassign them.

• You'll eventually hit a story branch which affects how the story, ending and last couple of maps will play out, it's on the fourth map in both of the original campaigns. It's pretty obvious when it happens, so make a separate save there if you want to see both versions.