Stellaris

Stellaris is a 4X real-time strategy video game, developed by Paradox Development Studio and published by Paradox Interactive. It is available on both Steam and GOG.com for Microsoft Windows, macOS and GNU/Linux.

Release
Upon the original release of Stellaris in 2016, there have been several DLC packs released, as well as free updates to the base game. Among players, the game is widely treated as having two major versions for play; 1.9 and 2.x (the current release version of which is 2.2.7). 1.9 was the last version before the development team made radical changes to the base game's economy and transportation systems, which have arguably made the game both easier and more predictable as a result.