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''Solar 2'' is an open world sandbox video game developed by Jay Watts' video game studio, Murudai. It was released on 17 June 2011 on Steam for Microsoft Windows and on 19 June 2011 on Xbox Live Indie Games for the Xbox 360. The game was developed with Microsoft's XNA tools, and its development was inspired by indie games such as flOw. The game follows the player in their mission to accumulate enough mass to become several astronomical objects, eventually becoming a big crunch, which then produces a Big Bang. The game is a sequel to ''Solar'' (2009), and features most of the same key gameplay elements of its predecessor, expanded and polished considerably. It was developed over ten months and includes a score composed by sound designer and musician JP Neufeld. ''Solar 2'' received mainly positive reviews from video game journalists, scoring 72 out of 100 on aggregate website Metacritic. It was awarded the first prize at the 2011 Microsoft Dream Build Play competition, and was among the video games showcased at the 10th Penny Arcade Expo. == Gameplay == ''Solar 2'' is an open world sandbox video game played from a two-dimensional perspective. The player is given an asteroid, and their main mission is to accumulate enough mass to become several astronomical objects.〔 The game ends when and if the player manages to accummulate enough mass to become a big crunch, which then produces a Big Bang. However, the player is free to not finish the game, and is able to stay at the form of the object of their preference. Six different object are available in the game: small planet, life planet, small star, medium star, large star and black hole.〔Watts, Jay. ''Solar 2'' (tutorial). Murudai. 2011.〕 The game takes place in a borderless and randomly generated universe, filled with asteroids, planets, stars and solar systems.〔 Life forms are also present in the game. They appear on planets sufficiently big to store life, and are represented by a variety of ships of different size and attack power.〔 Spaceships are coloured green if they belong to the player's planet, or to a planet that belongs to the player's solar system; red if they belong to an enemy planet or solar system; and white if they don't belong to any planet or system.〔 All the spaceships in the map are controlled by the game's artificial intelligence (AI), and they will constantly engage in combat against enemy ships, asteroids or planets to destroy them.〔 At the beginning of the game, the player accumulates mass by colliding their asteroid against other asteroids until enough mass has been gathered to become a small planet.〔 From there, the player has to absorb other asteroids to make their planet grow enough to become a life planet; crashing against other objects will decrease the player's mass. At this point, life forms will evolve in the planet, creating spaceships, planetary shields and cannons.〔 If the player wishes, they can accumulate more mass until their planet becomes a star.〔 Life forms will disappear, but the player will be able to attract planets to form a solar system, further grow the star by absorbing other planets, or a combination of both.〔〔 The player can also create multi-star systems by selecting planets from their system and make them absorb asteroids until they become another star.〔 Growing the star will increase its gravitational force, which increases the number of planets the solar system can have.〔 They will also be able to attract solar systems composed of stars with lower mass than that of the player, or being attracted to stars with bigger mass. If both stars collide, they will be reduced to a lesser size within the same type of object. For example, if the player controls a small star and collides against a medium star, the player will be disintegrated while the AI-controlled star will be reduced to a small star. Being reduced from small star to life planet is not possible, as well as being reduced from small planet to asteroid. In these cases, the player is respawned, with random mass, close to the place where they collided.〔 ''Solar 2'' also includes a variety of achievements and object-oriented missions that can be played at any time.〔 Missions can be found following the directional arrows in the interface, and the AI keeps track of which missions the player has finished.〔 The game also keeps record of several accomplishments the player has reached, such as the distance travelled, the amount of objects and enemies destroyed by the player or the spaceships belonging to the player.〔 ''Solar 2'' allows the player to save progress at any point. A "save system" feature is also present; it allows the player to save specific configurations of stars and planets that the player has created. The player can respawn from them at any time.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Solar 2」の詳細全文を読む スポンサード リンク
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