One of my favorite turn-based strategy/war games in Disciples 1 and 2.
Basically you choose a race: Humans, Dwarves, Undead, or Demons. Humans and Dwarves represent the good guys, while the Undead and the Demons are ... yep, you guessed it evil.
Each mission is based on taking over a city, destroying a ruin, gaining an item of power, etc. You can be a warrior lord and thereby increase the healing rate of your troops, a thief lord and gain special spy/thief abilities, or a wizard lord and gain extra spells. You will start out with the relevant leader in the first mission (a wizard for a wizard lord, a warrior for a warrior lord, and a ranger for the thief lord.).
Your leader can command a series of foot soldiers that gain levels and change types. The 4 types are: fighters, ranged attackers, and atrilary/healer/boosters, and special units. For example, the Humans have Knights, Wizards, Clerics, and Archers, while the dwarves have Fighters, Axe throwers, a "buffing" unit, and giants.
Depending on what buildings you build in your capital, your foot soldiers will gain different levels. Humans can choose between knights or witch hunters; while the dwarves can choose between "paragons" of dwarven warriors, or spell-using hermits.
Spells need the appropriate mana. Your basic spells require on type of mana (life, earth, fire, or death - relative to your race). As you progress, your spells will borrow from the other types of mana and will require both. Warrior and Thief lords can only cast a given spell once per turn, while a wizard can cast each spell twice.
Another aspect of the game is magic items. Your leader will start out with a few basic abilities (Warriors can use artifacts, wizards can use scrolls, wands, and orbs, Rangers can use magical boots). You can find items in chests scattered about the map (usually with an opponent in the way), in ruins, on a dead enemy's corpse, or in a captured city. As you leader levels up, you can gain the ability to use more magic items or increase independent abilities (hp, movement points, damage, inititive, etc.) You can also increase the number of soldiers you can command (up to six including your leader).
The mechanics work well, and surprisingly the races without healing units (the Undead, Demons, and Dwarves) balance well with the Human healers. There is also a plot line that while not spectacular, gives the game a bit of fun. There are four levels of difficulty, though the "average" game is quite easy, the two highest levels of difficulty increase the AI tremendously.
Erge