Assassin's Creed Odyssey is almost a year old, but Ubisoft is still cranking out significant free updates. Earlier in the month, the final quest in the Lost Tales of Greece series was added to the game, reuniting you with the extremely chatty Socrates, and today you can start soaking up the history of the ancient world by jumping into one of the new Discovery Tours. 

One of the things I miss from the older Assassin's Creeds are the historical asides. Whenever you came across an interesting building, you'd be able to do a bit of light reading on its historical importance. That's been done away with, unfortunately, so while Odyssey is still full of locations rich in history, you need to discover it all for yourself. But now you can take a Discovery Tour. 

There are five different tours and tour guides, including your old mate Herodotus, covering the themes of philosophy, famous cities, daily life, war and myths. Once you finish the tours, you'll be quizzed, so pay attention. Completing objectives will also net you rewards like new avatars and mounts.

While Odyssey is by far the most fantastical of all the Assassin's Creeds, it's still the product of loads of historical research. For the Discovery Tour, Ubisoft has also teamed up with a variety of historians and classicists to make sure they're not spouting nonsense.  

The Discovery Tour is available for free to all players today, but you can also get a standalone version on Uplay for $20.

Assassin's Creed Odyssey's second DLC story arc, The Fate of Atlantis, tasks Kassandra and Alexios with confronting phoney gods and exploring some of the prettiest places the series has ever put on our screens. Normally you'd need to buy all three episodes, but this week the first one has shed its price and is free for everyone to keep. 

The Fate of Atlantis is even more of a fantasy RPG than the main quest, largely throwing out historical locations and replacing them with places like the Fields of Elysium or Atlantis. There are reasons, which are nonsense, but it's a good excuse to visit some really impressive locations. 

One thing it does have in common with the main game is that it's dense. Fields of Elysium, the first episode, gives you a pretty large mythological playground to muck around in, with forts, treasures, warring factions and plenty of quests. There are all the diversions you'd expect from Odyssey. And lots of lovely spots for screenshots. 

Odyssey's season pass and both DLC packs are also 50 percent off, if you end up getting hooked. Legacy of the First Blade, the first DLC arc, is rubbish, and I'd honestly avoid it. You need to play if you want the whole story, technically, but it cheapens all of your decisions and funnels you into a terrible, inescapable romance. I'm still seething that I had to date the most boring boy in all of Greece. Skip it and just go hang out with the gods. 

Fields of Elysium is free until September 1 on Steam and Uplay. 

In a recent investor call, Ubisoft CEO Yves Guillemot assured investors that porting games to Google Stadia isn't as costly a job as it may seem.

"The extra cost to put to make sure the games work well on Stadia is not that high," Guillemot said, according to a report by Gamasutra. "It's part now of our pipelines and we have a good relationship with Stadia to make sure it is profitable for us."

The technical details of Google's upcoming game streaming platform have been murky since its reveal. I previously assumed that Stadia would essentially stream the same PC version I could download elsewhere, but the process is more involved.

As Gamasutra points out, Ubisoft's smooth operation might be a special case here. The company was an early partner with Google on Stadia. Last year, some players got to try out a prototype version of Stadia (then called Project Stream) with a free copy of Assassin's Creed Odyssey.

It's reasonable to assume that a Stadia port would generally be a lighter workload than, say, a console port if a PC version already exists. At the very least, you don't have to worry about overworking Stadia's maxed-out machines running the game. Though challenges unique to streaming could present new considerations for ports in the future, like input delay in multiplayer games.