Leylines

Leylines is a turn-based strategy game with a fantasy setting. As a mighty magician that rules a kingdom of one of seven unique races (or an alliance of any two of those races) your goal is to explore the countryside, gather resources, research magical spells, develop your cities and build units to conquer your enemies. You can use your magics to augment your units', harm enemy units, summon powerful aids and even affect the terrain.

Each map is randomly generated, but is highly customizable. Alternatively you could play premade scenario maps. The game can be played as single-player against computer opponents or as hotseat multiplayer.