It's the game that seemingly never dies.
If anyone asks you which is the best Age of Empires game, there is only one answer: Age of Empires 2. And while there might be the odd few (hello Hayley, Tegan) who stridently defend Age of Mythology, it's Ensemble Studios' second game that gets the most love these days.
It's all thanks to Skybox Labs and Hidden Path Entertainment, who produced the superb HD re-release of Age of Empires 2 all the way back in 2013. And ever since then, AOE2HD has gotten a string of updates, ranging from brand new fan-made campaigns, to UI fixes, multiplayer improvements, optimisations for modern operating systems, and more.
And if you're a fan of the franchise, happy days: you're getting even more content. The developers announced Rise of the Rajas would be launching on December 20 (probably December 21 local time, though) with four new civilisations, four voice-acted single-player campaigns, a new map type and some balance and performance fixes.
The latest patch notes, including the balance tweaks, are outlined in full on Steam. Rise of the Rajas isn't available for pre-order yet, but you can read about the new Vietnamese, Khmer, Malay and Burmese factions on the store page.