L3O Interactive-developed Horizon will launch on Steam in full in February. The strategy game's beta version was added to Steam Early Access in July 2013, and is still available to purchase for $24.99.

Horizon belongs to the 4X strategy genre, which emphasizes universe exploration and conquest. In Horizon's case, players partake in turn-based tactical space combat, developing colonies that interact with ten alien races in industry, trade and sciences. The game is being published by Iceberg Interactive, which brought about another popular 4X space strategy game in 2012, Amplitude Studios' Endless Space.