Global Defence Force Tactics

Players assume the role of a GDF Commander and control GDF units in turn-based missions against the Invaders. Missions take place on 2D hex-maps, with attacks depicted by brief animated cutscenes, which may be toggled on and off in the options menu.

The game has 50 stages for the campaign of GDF + 50 stages for the campaign of Invaders. Through the stages the level of units increases, they get a new weapons, which in the game are 393 different types.