Military Madness[a] is a 1989 turn-based strategy video game originally developed and published by Hudson Soft in Japan and NEC in North America for the TurboGrafx-16.

Military Madness is a science fiction-themed turn-based strategy game where players assume command of the Allied-Union across sixteen increasingly difficult maps that take place at the Moon in 2089, each one giving a pre-determined set number of units to use, on a desperate offense against the Axis-Xenon Empire before they launch their doomsday weapon S.A.M.

[1] Terrain plays an important role during battle sequences, as it can affect the outcome of encounters in terms of terrestrial unit's mobility, attack and defense.

In the twenty-first century, humans made a foray into the Moon but great powers were in fierce conflict over the scarce lunar resources and the Axis-Xenon Empire insisted on their occupation.

[9][10] The title later received a Windows 95 conversion as part of the CD-appendix included with the August–September 1997 issue of Japanese magazine LOGiN and was later distributed by Hudson at their official website as freeware, featuring a unit placement editor unique to this port.

[13] An updated version for PlayStation was developed by Matrix Software and published by Hudson in Japan on 26 February 1998 and later in North America by Jaleco under the name Nectaris: Military Madness on 22 January 1999, featuring new maps and battle sequences rendered in 3D.

[32] Tetsuya Inamoto of Japanese website Game Watch wrote that the rules were easy to understand for players despite being a full-scale strategic simulation.

[37] Hiroaki Kageyama of Oh!X reviewed the X68000 conversion titled Nectaris, feeling disappointed for the visuals due to not making use of the X68000's graphic capabilities, while criticizing game's the overall strategies.

[30] AllGame's Joe Ottoson praised the map and vehicle designs, faithful rendition of the original HuCard music, responsive controls and replay value, stating that "Nectaris holds up well despite the age of the game".

[17] GameSpot's Peter Bartholow regarded it as a solid title, commending its two-player component and graphical improvement to the maps but remarked that the polygonal battles were dated for the system visual-wise, as well as the music.

[5] Eurogamer's Kristan Reed noted similarities with Advance Wars titles but nevertheless regarded it as a solid effort that justifies its place on the Virtual Console for being playable and well designed.

[25] Likewise, IGN's Lucas M. Thomas also noted similarities with Advance Wars but said that "Military Madness is a lot of fun and certainly worth a look if you're a fan of turn-based, grid-based, moon-based strategy".

[28] Military Madness was adapted to a manga titled The Shape of Happiness,[b] published in the Famitsu Comix collection from March 1989, drawn by Tamakichi Sakura.

[41] A game with similar gameplay mechanics titled Earth Light was released for the Super Famicom in 1992, coded by the same programmer who worked on Military Madness.

[42][43] A sequel titled Neo Nectaris was released in 1994 for the PC Engine Super CD-ROM² and later re-released for the Wii's Virtual Console, taking place ten years after the events of the first game.