Halo Wars: Definitive Edition will be available on Steam come 20 April. And no it's not a 4/20 joke. The remastered edition will cost around £15 and cross-play with the Windows Store versions will not be supported.
Halo Wars: Definitive Edition is an enhanced version of the Xbox 360 real time strategy from 2009, and its getting a standalone PC release really soon. I say "standalone" because the game was already released for PC in late 2016, but only as a bundle with the "Ultimate Edition" of Halo Wars 2.
This version of the game will become available for Xbox One and Windows 10, and it's also coming to Steam on 20 April. The game originally did ship for Xbox One and Windows 10, but the Steam thing is new and understandable if Microsoft wants to expand the player base and build foundations for a long - running franchise.
Experience the beginning of the Covenant War in Halo Wars: Definitive Edition, coming to Xbox One, Windows 10, and Steam on April 20! pic.twitter.com/cy1oF1fUVq— Halo (@Halo) April 17, 2017
The price is said to be in the neighbourhood of £15, so the people who bought the Ultimate Edition of Halo Wars 2 didn't save money, but they did get a four month early access kind of a deal. And that is something. The Definitive Edition was previously available as a part of a £63 bundle.
The original Halo Wars was released in 2009, and it was the first real-time strategy of the Halo franchise.