Dragon Force is a real-time strategy and role-playing video game developed by J-Force and Sega and published by Sega for the Sega Saturn. It was translated for North American release by Working Designs in 1996, a translation that was also used by Sega in Europe under license from Working Designs. The game's main selling point was that battles involve up to 200 soldiers fighting on screen in real time, causing them to be often likened to the battle scenes in the then-recent film Braveheart.

Upon its release, critics resoundingly praised Dragon Force for its melding of the war simulation and story-driven RPG genres, and it remains one of the Saturn's most highly regarded games. A sequel, later translated by fans, was released for the Saturn in Japan in 1998. The first game was enhanced and released for the PlayStation 2 as part of the Sega Ages series. This version was re-released for the PlayStation 3 as a PS2 Classic in July 2012 in Japan.

The player assumes the role of one of eight rulers vying for control of Legendra. Each ruler has a set of generals under their command, and each general commands an army of up to 100 soldiers. Armies travel between towns and castles via fixed routes on an overhead scrolling map, much like the earlier Saturn game Romance of the Three Kingdoms IV: Wall of Fire. When armies of different nations meet, they engage in battle.

Although both the world map and battles unfold in real time, the game pauses when the player opens a menu.

At the outset of the battle, the player must choose to Attack, Talk, or Retreat. If the player chooses Retreat, their army loses the battle and some troops, and moves out of the victorious army's path on the world map. The Talk option opens negotiations with the enemy. The enemy may then leave their castle or join the player's monarch, but if the enemy refuses to negotiate, battle will start with the player bereft of all troops; because of this tremendous advantage, the enemy will nearly always refuse to negotiate. If Attack is selected, each side chooses a general and corresponding company of troops to send into battle, and then chooses a formation which determines the arrangement of troops. The enemy side always chooses first in both cases, allowing the player to determine an appropriate counter-strategy. During battle the player can select commands or special attacks from a menu. Each individual skirmish ends when one general runs out of hit points or retreats. If both generals' armies are depleted, both generals are given one last chance to retreat before they are thrust into a one-on-one battle. Generals who run out of hit points are, depending on the general, captured, injured, or (rarely) killed in action. If the player's ruler is defeated in this manner, the player loses the game and must restart from the last save. The skirmishes continue until one army's generals have all been defeated, at which point the battle ends.

Every in-game "week" (a fixed amount of time on the world map), the player attends to administrative duties. During this time, players may give awards to generals (increasing the number of troops they can command or items that increase their capabilities), persuade captive enemy generals to join the player's army, search for items, recruit generals in the ruler's territory, fortify castles, and save the game. Plot-advancing cut scenes frequently take place at the end of the week.

Dragon Force is set in the world Legendra, which lived in an era of prosperity under the watch of the benevolent goddess Astea, until it came under siege by the evil god Madruk and his armies. The Star dragon Harsgalt and his chosen warriors, the Dragon Force, come to stop him. Personal disputes among the Dragon Force led to their downfall and left Harsgalt to face Madruk in a fight to death. Harsgalt, unable to kill Madruk, sealed him away until eight new chosen warriors could rise to permanently defeat him.

300 years later, the seal imprisoning Madruk has weakened and two of his Dark Apostles, Scythe and Gaul, have begun working towards his release. To ensure none will stop their master, the two of them manipulate the eight nations of Legendra into warring among themselves. Eventually, one of the monarchs successfully ends the war, though the events of how it occurs vary depending on the monarch. Regardless, the monarchs discover that they are the eight members of the Dragon Force, and that the only way they can kill Madruk is by obtaining the Dragon Power left by Harsgalt.