Popular games published by company Mountain King Studios, Inc.

Demonstar is an 1997 Indie vertical scrolling shooter shareware computer game was designed and developed by Mountain King Studios, Inc. and published by ionos, inc. in 1997. It is was the first original DemonStar series of top down vertical scrolling shooter computer game. The version was also 3D parallax air and ground was published ionos, inc. The game shares many similarities with the Raiden series. DemonStar features various power-ups, including smart bombs and other power-ups which modify the types of projectiles that the player's ship fires. The full version of the game features 18 levels. At the end of each level is a boss ship that the player must destroy. DemonStar was very successful in the shareware computer game, despite Mountain King Studios initially addition to the original game, two additional titles have been released: DemonStar Secret Mission 1 and DemonStar Secret Mission 2.

Swarm Assault is a real time strategy game where you battle with swarms of ants, beetles, spiders, scorpions and wasps to control the map. Each of the 5 Colonies have 3 units you can build, there is no resource management as the stronger the unit is the longer it takes to hatch. In total there is 100 levels to progress through based on 4 different terrain types, also a level creator to generate your own maps.