Kidou Senshi Gundam: Giren no Yabou: Zeon no Keifu is a strategy game for the Sega Dreamcast, expanding on the political mechanics of its predecessor. Players engage in diplomacy through treaties and ceasefires while managing military operations that allow for mobile suit upgrades and customization. The game features an enhanced map system and includes various mobile suits and characters from Gundam OVAs, along with factions such as Titan, A.E.U.G., and Axis.
Blood of Zeon features a more complex political system compared to the original Gihren's Greed. The player can now create ceasefires and treaties, and the military system now supports mobile suit upgrading and customization. The map system was also updated. Blood of Zeon also introduces mobile suits and characters from various Gundam OVAs, along with the third-party factions Titan, A.E.U.G, and the Axis.