Proton goes really, really far. If you can't play a game on the Steam Deck, it's more likely to be because the hardware isn't strong enough than being a compatibility problem, unless it's one of those games with bad anticheat yadda yadda.

Yes, in my experience I've not encountered any game that doesn't work on Steam Deck except for the ones using certain anti-cheats.

EA Anti-cheat doesn't work. (Battlefield, EA FC etc)
Battleye Anti-cheat doesn't work (Destiny 2, GTA Online) (Fortnite apparently uses a combination of Battleye and Easy Anti-Cheat)

Easy Anticheat games, like the recently released Rematch, typically work on Steam Deck

Outside of anticheat issues game compatibility is very, very good. If you don't want a PlayStation or Xbox but still want a console like experience steamos is definitely the way to go at the moment for most people.

In Blackbird, you would have played as a Revenant, an operative working for alien syndicates on a remote, tidally locked planet called Soteria. One side of the planet burned under an endless sun while the opposite side was covered in ice. Between the two regions would have been a habitable area known as The Twilight Band.

While the game offered a huge open world to explore, there was a focus on the planet's capital, Exodus, and the many secrets and mysteries hidden within the hovering megacity. Despite being controlled by a sentient AI called PAN, which operated the city's systems and kept everyone in check, five alien syndicates ruled the population in a stratified society with human Revenants acting as a neutral force to maintain balance.

The syndicates were being designed to act as a faction system similar to Bethesda Game Studios' RPGs, and included the Menst, an ancient race of arrogant aliens that believe they're superior to every other species. Alternatively, there were the Calpiten, famous media experts who charm and manipulate their way through the power struggles in the city.

There was also a strange aquatic species called Nemocytes that used exosuits to survive in Exodus. Completely opposite to the Nemocytes were the W'Hurran, a tall, furry species of clannish aliens who were masters of business.

Finally, there were the Trahet, a race feared and respected for their unique abilities to extract someone's deepest, darkest secrets. We would have also come across many other alien species in our travels, from humanoids and animal-esque creatures, large quadropeds, and insectoids.

When not exploring Exodus, you'd be sent out on missions to unlock fresh rewards, similar to Destiny and Warframe. General missions and activities would support up to four players, while Strike missions could have been tackled by up to six players, likely due to being tougher challenges to conquer.

The main storyline involved players solving a high-profile murder and restoring order to Exodus, while repeatable assignments from PAN would see you working to maintain balance within the city, and various side quests would have seen you learning more about the aliens inhabiting the world. Large public events called firefights had also been planned, forcing you to survive within Exodus' constant power struggles.

The missions would be offered by the alien syndicates you work for, seeing you making new friends and enemies as you work to unlock powerful new rewards. Much like ZeniMax's other MMO, Blackbird would have offered players new ways to customize their character, craft and upgrade gear, and complete progressive challenges for higher-quality rewards.

There were also plans for a housing system, daily login rewards, and PvP, although, much like The Elder Scrolls Online, Blackbird would have primarily focused on co-op gameplay and shared-world elements.

ZeniMax had already planned out a launch district called Old Central, and had live service goals in mind. The team had wanted to roll out new events weekly, monthly, and quarterly to keep players busy. It's a similar event system we see in ESO now, so the events could have been filled with unique loot.

Further story chapters, including fresh Districts, main quests, and Zones, would have expanded the world further — again, a similar expansion cycle ZeniMax has used for its fantasy MMO.

So, where would we fit in? We would have played as augmented humans known as Revenants. On Soteria, humankind is seen as the lowest form of life, but some are given the chance to become a Revenant working for the AI PAN. These few are admired by humans and feared by the alien races for their cybernetically enhanced combat prowess, acting as mercenaries to handle dangerous tasks out of reach of anyone else.

According to the initial story ZeniMax was hashing out, Project Blackbird began after a high-ranking syndicate official had been found murdered in a human neighborhood. We would have been called in to investigate the murder, remove various groups creating chaos in the city, and uncover mysteries involving powerful killers and secret leaders. From there, we would then have explored the city and the dangerous outside regions, and begin to uncover more about PAN's role in Exodus.

While the game started in Exodus, seeing you tackle various jobs, a series of events would have eventually led you out into the planet's wilderness. Out in the wilds, you'd learn more about the floating megacity, as well as the Revenants' origins.

Revenants were fully customizable, and the team had already worked out three archetypes, or classes: tanky Guns for Hire, environment-controlling Tech Operators, and healer-style characters called Augments. You would define your character's personality as you progressed through the story, roleplaying various choices and interacting with NPCs that would intentionally come across as morally grey, leaving you to define your own experience.

The team was aiming to use The Elder Scrolls Online's deep character customization and monetization aspects in Blackbird, too, so there could have been some form of in-game store similar to ESO's Crown Store for additional, premium cosmetics.

We'd have completely customized our Revenant, including sculpting their body, adding scars and tattoos, skins and biomodifications, cybernetics and body suit layers, modifying various weapons, and customizing our own apartments, vehicles, and drones.

Our source tells us that the team was experimenting with the skill system when the project was shuttered this week, so nothing concrete had been laid out, but a full progression path and a skill tree would have been present. Although playing similar to Bethesda's RPGs, the team was aiming to have it feel as accessible as Destiny, as dynamic as Warframe, and encompassed in a mysterious world somewhat like Horizon Zero Dawn.

Leaning into the alien noir themes, Project Blackbird was a gritty, atmospheric, and serious in tone, plunging players into a world filled with ancient themes and mystery. Blade Runner had been used as an example for the atmosphere the team was aiming for, using traditional noir techniques for its visual and plot themes.

Traversal was a core aspect of the game, with Exodus offering a vertical playground for players to explore, equipping players with a grappling hook, and, according to our source, you'd have been able to "climb and wall-run on any surface." The team wanted movement to feel natural and fun, similar to that found in games like Spider-Man and GTA.

ZeniMax wanted players to learn to feel the rhythm while moving, pushing them to adapt to changing obstacles by ensuring the environment had its own visual language — if it looked like you could climb something, you could climb it. With that said, it would have been important that no content was blocked from players who found something challenging; it wasn't a platformer.

That's a process the team has showcased in The Elder Scrolls Online since the beginning, letting players explore content without the worry of level blocking or being unable to get the hang of a certain mechanic. Accessibility has always been one of ESO's defining factors, and likely would have been a success here if Project Blackbird had been given a chance.

With that said, traversal played a major role in the general gameplay loop, which was being designed to have players using the environment to gain the upper hand in fights. Much like the skill system, it was still early days for combat, so we're short on specifics, but multiple weapon types would have been available, alongside upgrades called Amps and the aforementioned skill system to let players craft their own playstyle when taking on enemies.

Interestingly, our source tells us that ZeniMax had been toying with ideas for multiplayer side content away from the combat that would put the traversal system to good use, included races and obstacle courses. One mode the team had been toying with was like a blend of basketball and Quidditch. Our source says, "There was a ball to dunk into a ring, and you could pass or shoot," offering an experience that felt a little like Titanfall 2, although not as fast.

The multiplayer elements and co-op gameplay would have opened up to players after they had completed the tutorial, and could experience everything the game had to offer with friends, or alone if that's what they prefer. Much like ESO, power scaling would have let players play together regardless of their level or skill, while Amps would have opened cooperative synergy.

ZeniMax had taken a demo build to Microsoft's Redmond office in October 2024, and our source says the team had seen "good things coming out of that," so Microsoft leadership was impressed with the game.

In a development release review meeting that took place in late June, ZeniMax leadership were not expecting for Microsoft to shelve the game. In fact, the team was preparing to ramp up development after several years in pre-production and was in the process of executing a $300,000 purchase order for hardware when the news came that the game wouldn't be going ahead.

After several years in pre-production, ZeniMax was preparing to enter full production this October. Initially, the team was aiming for a two-year development window with a late 2027 release, but our source says the release window had moved to late 2028.

Exclusive: Inside ZeniMax's Cancelled Xbox MMO Project Blackbird

Matt Turnbull, Executive Producer at Xbox Game Studios Publishing - after the Microsoft layoffs - suggesting on Linkedin that may maybe people who have been let go should turn to AI for help. He seriously thought posting this would be a good idea.

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— Brandon Sheffield (@Brandon.insertcredit.com) 4 July 2025 at 04:48

I'd use SteamDeck but I want Game Pass and I don't think SteamDeck is powerful enough for me, I don't think I'm ready to make my own Gaming PC, hence why I'm waiting for the Xbox/PC hybrid but if I get a Handheld I'd like to use it docked from time to time as well. Lets say I'm playing Spider-Man on SteamDeck but docked, what kind of resolution/framerate could I expect? But I'm waiting for ROG Xbox Ally X because it will be the most powerful handheld on the market and hopefully Windows OS isn't complete garbage by then.

Why aren't you ready for a PC?

I built mine 2 years ago now, best gaming decision I have made

Idk if I'm late with this news, but;
https://www.gamesradar.com/games/fps/despite-rumors-to-the-contrary-perfect-dark-developer-confirms-the-canceled-games-awesome-dishonored-riffing-demo-was-actually-real/

""I was one of three level designers that worked on it," McDonald confirmed. "It worked best if you played it the way the person playing in the video plays it, but it still worked even if you didn't hit the marks perfectly. There's some fake stuff in it, and the real gameplay systems shown off worked juuust enough to look good in this video. We were rapidly making real design decisions so as to not knowingly lie to players about what the game will be. The parkour is all real, the hacking/deception is mostly real."

Like most vertical slices, the combat is also real in the sense that someone was actually controlling the character, but "it's set up to be played exactly that way didn't play well if you played it a different way.""

Steam Deck is basically PS4 level GPU performance, though much better CPU. But it's quite long in the tooth now. Unlike the Switch/Switch2 it runs at full power in handheld mode, so docking doesn't change it's power. If you want power then it's not really the way to go, and if you really want game pass support it's not either. Something like DA Veilguard for example you'll have to play on low settings at 1280x800, 30fps, with XESS/FSR enabled as well. It looks ok portable but on a TV it will look very poor. Steam Deck is better for older and lower requirement titles.

Having owned an ROG Ally as well SteamOS really is so much better of an experience for a gaming handheld, so hopefully MS come with a very good frontend ready for the ROG Xbox Ally.

It's a shame that the ROG Xbox Ally X is going to be £799. For that price you could build your own PC that matches or even beats a PS5 Pro (with second hand PC parts), but I understand that isn't for everyone. Future Xbox hardware is likely to be expensive on the power to performance front too with the direction they are going.

• I prefer the console experience, the ease of use, plug and play with no troubleshooting or adjusting settings.
• I prefer the console ecosystem/UX.
• I don't think there's any point in me switching to PC right now when I have an Series X, to play all the same games on PC instead.
• I know nothing about PC hardware, GPU/CPU, AMD vs Intel, etc.
• I don't have a clue how much I'd have to spend for a (lets say Series X equivalent) PC.
• I don't have a clue about building my own PC and Tbh I would just use a PC Builder Site and before PCMR comes in and tells me I'm stupid and it will be more expensive and building my own PC is super easy, etc. Respectfully, I don't care, Lmao.

ROG Xbox Ally will be the most powerful handheld on the market, if Windows OS for Gaming isn't shit by its release then I will get that, I will use it to ease my way further into PC Gaming, I like Handhelds, I love my Switch which I mostly use in Handheld mode, but I still want the big TV screen experience and I want to do that without taking up my current PC.

The rumoured Xbox/PC hybrid will remove most of my "issues" so I might as well wait for that.

My current plan would be...

• Continue using my Xbox Series X as normal, Game Pass and buying 3rd parties.
• Buy the ROG Xbox Ally X, that will be when I create a Steam account, I will use it mostly in handheld mode but I might try out docking it too, I will alternate between Game Pass/Play Anywhere titles and Steam for smaller titles + Some Sony titles, if the bigger Sony titles don't look like shit when docked, otherwise I will just probably exclusively play smaller titles on the ROG Xbox Ally X.
• Buy the Xbox/PC hybrid, I don't care who it comes from, whether Xbox or Asus, I will just buy whatever is the most powerful. If it's just a Windows PC but with the ease of use of a Console and feeling of one then great. From then on I will still use Game Pass but I will likely start buying non-Game Pass titles on Steam instead of Microsoft Store.

I have it all planned out, Lol.

Plus I've got to buy a Switch 2 still and ROG Xbox Ally X this year.